42 MISC. PUBLICATION 477, U. S. DEPT. OF AGRICULTURE 



1939, Martinez 875 (USNA); Coapilla, June 1939, Martinez 887 (USNA). Ta- 

 basco: Ojo 'Agua, Balancan, May 9-14, 1939, Matuda 8129 (F, Mi). 



BRITISH HONDURAS.— Without further data, Kinloch 97 (F); between 

 Mullins River and Manatee, August 16, 1940, Gentle 8378 (NY); Sein Bight, 

 November 25, 1930, Schipp 672 (AA, F, MBG, Mi, NY). El Cayo District: 

 Mountain Pine Ridge, San Agustin, July-August 1936, Lundell 6627 (F, MBG, 

 Mi, NY, US) ; Lundell 6837 (Mi, USNA) ; March 1, 1936, Bartlett 11886 (DeP, Mi, 

 NY); Little Mountain Pine Ridge, March 1, 1931, Bartlett 11878 (Mi, NY); Duck 

 Run, February 17, 1931, Bartlett 11552 (Mi); Bartlett 11553 (AA, Mi, NY); April 

 24, 1931, Bartlett 12976 (Mi, NY); Bartlett 12979 (AA, DeP, Mi, NY). Stann 

 Creek District: Sarawee Pine Ridge, February 18, 1939, Gentle 2695 (F, Mi, 

 NY, USNA); Stann Creek Railway, May 12, 1929, Schipp 209 (AA, F, MBG, 

 Mi [2], NY, US). Belize District: without further data, January-June 1936, 

 Lundell 6964 (F, MBG, Mi, NY) ; Big Fall Pine Ridge, April 28, 1933, Lundell 4347 

 (F, Mi, USNA) ; Boomtown, August 23, 1936, O'Neill 8555 (NY) ; September 13, 

 1936, O'Neill 8554 (F, Mi, NY, US); Belize, ridge near aviation field, January 28, 



1931, Bartlett 11203 (DeP, Mi, NY); Cornhouse Creek, January 31, 1931, Bartlett 

 11808 (DeP, Mi, NY); Bartlett 11313 (AA, Mi, NY). 



GUATEMALA. — Without further data, Friedrichsthal without number (NY) ; 

 Santa Ines, February 25, 1927, Galusser 1 (F, US). Dept. Peten: Logwood 

 Swamp, Dos Arroyos, March 15, 1931, Bartlett 12112 (Mi, US). Dept. Alta 

 Verapaz: near Finca Sepacuite, March 31, 1902, Cook and Griggs 318 (US). 

 Dept. Izabal: between Izabal and Los Amates, May 31, 1919, Blake 7735 (US). 

 Dept. Zacapa: Gualan, January 20, 1905, Beam 159 (G, Mi) ; El Ojillal de Cenizas, 

 between Gualan and Copan, Januarv 1907, Pittier 1789 (US) ; El Jute, near Copan, 

 December 1906-Januarv 1907, Pittier 1818 (NY, US). 



HONDURAS.— Olanchita, February 14, 1927, Record and Kuylen 53 and 5SA 

 (US). Dept. Santa Barbara: San Pedro Sula, April 1887, Thieme 5615 (G, 

 US [21). Dept. Copan: Hac. Espiritu Santo, Mav 10, 1919, Whitford and 

 Stadtmiller 41 (US); Macuelizo, May 19, 1919, Whitford and Stadtmiller 55 (US). 

 Dept. Yoro: Subirana, September 1937, von Hagen 1095 (F, NY); near Las 

 Flores, vicinity of Coyoles, Aguan River Valley, June 30, 1938, Yuncker, 

 Koepper, and Wagner 8179 (DeP, F, MBG, Mi, NY). Dept. Comayagua: 

 Coyocuteno, San Luis, May 27, 1932, Edwards 323 (AA, F) ; Las Limas, July 1, 



1932, Edwards 875 (AA, F, US); Comayagua, February 23, 1933, Edwards 578 

 (AA [2], F, US). 



COSTA RICA. — Prov. Guanacaste: between Guachipelin and Liberia, May 

 27, 1932, Brenes 15590 (F) ; between Los Abogados and Liberia, July 1890, Pittier 

 2607 (US [2] fisotypes of var. australis]) ; between Carretera and Santa Maria, near 

 Liberia, January 14, 1930, Dodge and Thomas 6282 (F, MBG, Mi, US). 



II. SUBGENUS ERYTHROBALANUS (Spach) Oerst., K. Danske 

 Vidensk. Selsk. Skrift. 9: 358. 1871. 



Erythrobalanus Spach, Hist. Nat. Veg. Phen. 11: 160. 1842 (as 



section) . 

 Erythrobalanus Endl., Gen. PI. Sup. 4 2 : 24. 1847 (as subdivision 



of Quercus without indication of rank) . 

 Erythrobalanus Schwarz, Notizbl. Bot. Gart. Mus. Berlin-Dahlem 



13: 8. 1936 (as genus). 



Shrubs or usually large trees with the bark rough and deeply furrowed 

 or rather smooth but not scaly and never soft or corky, usually black 

 or very dark ; wood usually reddish, the ducts seldom containing tyloses, 

 the smaller (summer wood) ducts always thick-walled (3/* or more) 

 and round; leaves deciduous or evergreen, never round-lobed, if 

 toothed then the teeth aristate-tipped, often entire and the apex 

 aristate or not; stamens usually 6, anthers apiculate or mucronate (or 

 not); styles elongate, gradually dilated into spatulate stigmas; fruit 

 annual or biennial (maturing in 1 or 2 years) , cup scales narrowed or 

 broad, thin, rarely corky-thickened basally, abortive ovules apical 

 or rarely basal or deeply lateral, the acorn shell densely tomentose 

 within. 



Type species: Quercus phellos L. 



