New guide to rose culture - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Dingee & Conard Co, 1922)

New guide to rose culture - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Dingee & Conard Co, 1923)

New guide to rose culture - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Dingee & Conard Co, 1925)

New illustrated and descriptive catalog of fruit and ornamental trees, small fruits, shrubs, vines and roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kellogg's Nursery, 1919)

New illustrated and descriptive catalog of fruit and ornamental trees, small fruits, shrubs, vines and roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kellogg's Nursery, 1918)

New illustrated and descriptive catalogue of fruits and ornamental trees, vines, shrubs, roses and plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Puyallup Nursery, 1908)

New plant introductions - United States. Office of Foreign Seed; Plant Introduction. (G.P.O, 1914)

New plant introductions - United States. Office of Foreign Seed; Plant Introduction. (G.P.O, 1915)

New plant introductions - United States. Office of Foreign Seed; Plant Introduction. (G.P.O, 1916)

New Plant introductions - United States. Office of foreign seed; plant introduction. (1914)

New Plant introductions - United States. Office of foreign seed; plant introduction. (1916)

New Plant introductions - United States. Office of foreign seed; plant introduction. (1917)

New planting guide - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Waynesboro Nurseries, 1938)

New planting guide - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Waynesboro Nurseries, Inc, 1936)

New York State Museum bulletin - New York State Museum. (University of the State of New York, 1921)

Newer, better fruits sold only by Stark Bro's - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Stark Bro's, 1933)

News - Indiana Native Plant; Wildflower Society. (Indiana Native Plant and Wildflower Society, 2002)

News letter - United States. Bureau of Entomology; Plant Quarantine. (Bureau of Entomology and Plant Quarantine, 1934)

NHS news - Northwest Horticultural Society. (Northwest Horticultural Society, 1988)

North shore garden makers, 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Highmead Nursery, 1938)

Northrup, King & Co.'s thirty-second annual catalogue [of] sterling seeds : 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Northrup, King & Co, 1916)

Northrup, King & Co.'s thirty-third annual catalogue [of] sterling seeds : 1917 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Northrup, King & Co, 1917)

Notes on the distribution of Pennsylvania plants : based on specimens in the Carnegie Museum of Natural History herbarium - Carnegie Museum of Natural History (Carnegie Museum of Natural History, 1989)

Notes on the growing of trees, shrubs and herbaceous pernnials together with a selected list of these plants suitable for planting in Manitoba - Brodrick, F. W. (Frederick William), 1879 -1959 (s.n, 1919)

Novelties and specialties - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.A. Manda, Inc, 1913)

November 1931 seed for nurserymen - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1931)

Number 62 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Augustine & Company, 1927)

Nursery catalog : spring 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Sioux City Seed and Nursery Co, 1908)

Nursery catalog : spring 1909 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Sioux City Seed and Nursery Co, 1909)

Nursery catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bloodgood Nurseries, 1912)

Nursery catalogue and price list : fall 1958 & spring 1959 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Walker Nurseries, 1958)

Nursery catalogue and price list featuring quality plants : fall 1943–spring 1944 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Walker Nurseries, 1943)

Nursery, fruit and farm seeds : 1923 year book - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.N. Scarff & Sons, 1923)

The nursery guide : spring 1939 trade list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Nordstrom Nursery Co, 1939)

Nursery stock adapted to the Middlewest [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kansas Evergreen Nurseries, 1930)

Nursery stock and commercial forest planting, 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Franklin Forestry Co, 1931)

Nursery stock and commercial forest planting, 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Franklin Forestry Co, 1932)

[Nursery stock brokerage list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1928)

Nursery stock brokerage list offers #7, #8 : August 1st, 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1928)

Nursery stock bulbs for fall planting : Autumn 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Malmo & Co, 1928)

Nursery stock of distinction, complete landscape department : price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Westminster Nurseries, 1943)

Nursery stock of distinction, complete landscape department : price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Westminster Nurseries, 1947)

Nursery stock of distinction, complete landscape department : price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Westminster Nurseries, 1948)

Nursery stock of distinction, complete landscape department - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Westminster Nurseries, 1940)

Nursery stock of distinction, complete landscape department - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Westminster Nurseries, 1938)

Nursery stock of distinction, complete landscape department - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Westminster Nursery, 1937)

Nursery stock, spring-fall 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Co, 1932)

Nursery stock, trees, shrubs, plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Franklin Forestry Nursery, 1940)

Nursery stock, trees, shrubs, plants, ornamental evergreens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Franklin Forestry Co, 1933)

Nursery stock, trees, shrubs, plants, ornamental evergreens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Franklin Forestry Co, 1935)

Oak brand shrubs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Conard-Pyle Co, 1926)

Oak brand shrubs freshly dug for each order : [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Conard-Pyle Co, 1929)

Oak Park Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oak Park Nurseries, 1947)

Oak Park Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oak Park Nurseries, 1948)

Offer No. 29 : February 9th, 1929 price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1929)

Offer No. 31 : March 9th, 1929 price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1929)

Offer No. 58, September 23rd, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, inc, 1930)

Offer No. 61 : January, 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, inc, 1931)

Offer No. 62 : February, 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, inc, 1931)

Opuscula philolichenum (J. Lendemer, 2009)

Oriental flowering trees - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Garden Nurseries, A. E. Wohlert, 1926)

Oriental flowering trees - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Garden Nurseries, A. E. Wohlert, 1927)

Oriental flowering trees : Japanese roseflowering and weeping cherries, Chinese flowering crabs, double-flowering peach, flowering plums, magnolias, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Garden Nurseries, 1929)

Ornamental and fruit tree catalogue : 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Leonard Coates Nurseries, 1926)

Ornamental and fruit trees : illustrated descriptive catalog 1921-22 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Co, 1921)

Ornamental and fruit trees : price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Co, 1921)

Ornamental flowering shrubs, shade trees, vines, evergreens : spring 1930 price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Valley View Nursery, 1930)

Ornamental hardy trees, shrubs, plants and bulbs : fall–spring 1945–1946 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1945)

Ornamental hardy trees, shrubs, plants and bulbs : spring 1945 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1945)

Ornamental plants for landscape gardening : a catalog of dependable ornamentals for outdoor planting, 1924-1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weed's Nursery, 1924)

Ornamental shrubs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fairfax Farms Nursery, 1924)

Ornamental shrubs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fairfax Farms Nursery, 1925)

Ornamental shrubs for garden, lawn, and park planting, with an account of the origin, capabilities, and adaptations of the numerous species and varieties, native and foreign, and especially of the new and rare sorts, suited to cultivation in the United States - Davis, Lucius Daniel, 1826 - (Putnam, 1899)

Ornamental shrubs for garden, lawn, and park planting, with an account of the origin, capabilities, and adaptations of the numerous species and varieties, native and foreign, and especially of the new and rare sorts, suited to cultivation in the United States - Davis, Lucius Daniel, 1826 - (G.P. Putnam's sons, 1899)

Ornamental trees and plants for home grounds and other landscape gardening, fruit trees for commercial orchards and home gardens : No. 127 price list, fall 1927-spring 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (I.E. Ilgenfritz' Sons & Co, 1927)

Ornamental trees, evergreens, shrubs, perennials and rock garden plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Van's Nursery and Landscape Service, 1940)

Ornamental trees, evergreens, shrubs, roses, bulbs and plants for the garden : 1927 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Danker Florist, 1927)

Ornamental trees, evergreens, shrubs, roses, bulbs and plants for the garden : 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (A.T. De La Mare Co., Horticultural Printers, 1928)

Ornamental trees, evergreens, shrubs, roses, bulbs and plants for the garden : 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Danker Florist, 1926)

Ornamental trees, evergreens, windbreaks, fruits, shrubs : spring 1947 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.V. Bailey Nurseries, 1947)

Ornamental trees, evergreens, windbreaks, fruits, shrubs : spring 1948 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.V. Bailey Nurseries, 1948)

Ornamental trees, evergreens, windbreaks, fruits, shrubs : spring 1945 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.V. Bailey Nurseries, 1945)

Ornamental trees, evergreens, windbreaks, fruits, shrubs : spring 1944 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.V. Bailey Nurseries, 1944)

Ornamental trees, fruits, shrubs, evergreens, windbreaks : spring 1943 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.V. Bailey Nurseries, 1943)

Ornamental trees, shrubs, and evergreen shrubs : fall 1954. No. 2 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas B. Meehan Co., Inc, 1954)

Ornamental trees, shrubs, and woody climbers - Macoun, W. T. (William Tyrrell), 1869 -1933 (Canada Dept. of Agriculture, 1927)

Ornamental trees, shrubs, evergreens and conifers : descriptive catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hogansville Nurseries, 1937)

Ornamental trees, shrubs, evergreens and conifers : descriptive catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hogansville Nurseries, 1935)

Our 100th year, pioneer nurserymen since 1847 : Ilgenfritz, the Monroe Nursery - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (I.E. Ilgenfritz' Sons & Co, 1947)

Our diamond jubilee : 1882-1957, 75th year : fall 1957, spring 1958 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Glen Saint Mary Nurseries Company, 1957)

Our fiftieth year bargain list : (1878 to 1927) - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kelsey Nursery Service, 1927)

Our new guide to rose culture : 1891 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Dingee & Conard Co, 1900)

Our twenty-eighth annual catalogue speaks for our responsibility - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. ([Drumm Seed and Floral Co, 1917)

Our wholesale offering : fall 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cottage Gardens, 1936)

P. Sylvestris Scots pine seed : 1946 crop enroute from Europe now - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1947)

Pamphlets on silviculture (1899)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1995)

The Parade of modern roses and perennials : spring 1947 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Jackson and Perkins Company, 1947)

Parade of modern roses, perennials and fruits : spring 1945 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Jackson and Perkins Company, 1945)

Parade of modern roses, perennials and fruits : spring 1946 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Jackson and Perkins Company, 1946)

The Park Nurseries [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Park Nurseries, 1927)

Park's 1944 flower book - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Company, 1944)

Park's flower book : spring 1943, seventy-fifth Anniversary - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Company, 1943)

Parks : a manual of municipal and county parks compiled as a result of a nation-wide study of municipal and county parks conducted by the Playground and Recreation Association of America, in co-operation with the American Institute of Park Executives at the request of the National Conference on Outdoor Recreation - American Institute of Park Executives. (A.S. Barnes & Co, 1928)

Peonies, bulbs, poppies and other specialties - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Cole Nursery Company, 1931)

Peonies, bulbs, poppies and other specialties - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cole Nursery Co, 1930)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1927 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (T.C. Thurlow's Sons, Inc, 1927)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1924 issue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Newcomb & Gauss, 1924)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1923 issue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Newcomb & Gauss, 1923)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1922 issue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Newcomb & Gauss, 1922)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1929 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (T.C. Thurlow's Sons, Inc, 1929)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1928 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (T.C. Thurlow's Sons, Inc, 1928)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1931 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thurlow's and Stranger, Inc, 1931)

Peonies, hardy garden perennials, ornamental evergreens, shade trees, shrubs : 1938, superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cherry Hill Nurseries, 1938)

Peonies, hardy garden perennials, ornamental evergreens, shade trees, shrubs : 1937, superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cherry Hill Nurseries, 1937)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1934 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thurlow's and Stranger, Inc, 1934)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1935 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thurlow's and Stranger, Inc, 1935)

Peonies, hardy garden perennials, ornamental evergreens, shade trees, shrubs : 1936, superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cherry Hill Nurseries, 1936)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1932 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thurlows and Stranger, Inc, 1932)

Peonies, hardy garden perennials, ornamental evergreens, shade trees and shrubs : 1933 issue superseding all previous issues - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thurlow's and Stranger, Inc, 1933)

Perennial and annual plants, evergreen trees and shrubs : 1931 catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Sunnyvale Gardens, 1931)

Perennial and rockery plants : shrubs, trees, vines, evergreens, and roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gardenside Nurseries, 1930)

Perennial plants [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph F. Martin Perennial Nurseries, 1930)

Perennial plants, shrubs, trees, vines, evergreens, and roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gardenside Nurseries, Inc, 1929)

Perennial plants, shrubs, trees, vines, evergreens, and roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gardenside Nurseries, 1928)

Perennials, flowering shrubs, rock plants, evergreens : 1926 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1926)

Perennials, rock plants, flowering shrubs, evergreens : 1927 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1927)

Perennials, rock plants, flowering shrubs, evergreens : 1928 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1928)

Perennials, rock plants, flowering shrubs, evergreens, 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1929)

Perennials, rock-plants, shrubs, evergreens, roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Turner Bros. Nursery, 1938)

Perennials, rock-plants, shrubs, evergreens, roses, 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Turner Bros. Nursery, 1936)

Perennials, rock-plants, shrubs, evergreens, roses, 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Turner Bros. Nursery, 1937)

Perennials : use hardy plants for winter forcing, for summer cutting, for landscaping, for potted plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph F. Martin Perennial Nurseries, 1929)

Perfection Nurseries : 1929-1930 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perfection Nurseries, 1929)

Perfection Nurseries, growers of high-grade nursery stock : 1928-1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perfection Nurseries, 1928)

Perry Seed Company, 1929 : successors to Fiske Seed Co - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perry Seed Company, 1929)

Perry Seed Company, 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perry Seed Company, 1931)

Perry Seed Company, 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perry Seed Company, 1932)

Perry Seed Company, successors to Fiske Seed Company : 1930 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perry Seed Company, 1930)

Pesticides documentation bulletin - National Agricultural Library (U.S.) (National Agricultural Library, U.S. Dept. of Agriculture, #c 1965-1969, 1965)

Philadelphia flower show - Pennsylvania Horticultural Society. (The Society, 1967)

Philadelphia flower show - Pennsylvania Horticultural Society. (The Society, 1989)

Phlox, peonies, iris, etc., also a fine collection of perennials : roses, shrubs, evergreens, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frederic J. Rea, 1915)

PHS news - Pennsylvania Horticultural Society. (The Society, 1971)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1981)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1983)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1984)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1985)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1986)

Phytoneuron (Guy L. Nesom, 2015)

Pigford Nurseries, 1928-29 season - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pigford Nurseries, 1928)