THE CENTRAL AMERICAN SPECIES OF QUERCUS 65 



exclude all other Central American species. It is distinguished from 

 the Mexican species of the series Crassifoliae by its biennial fruit. 

 The forms described under this species by Trelease are best referred 

 to Q. crispipilis var. pannosifolia. 



Specimens examined: 



MEXICO.— Chiapas: Las Casas, February 1939, Martinez 366 (USNA); July 

 1940, Martinez 384 (USNA). 



GUATEMALA. — Dept. Huehuetenango: San Juan Ixcoy, August 22, 1934, 

 Skutch 1072 (F, 111); near Chalchitan, January 14, 1939, Standley 62578 (F); 

 mountains southwest of Malacatancito, January 14, 1939, Standley 62607 (F) ; 

 Standley 62615 (F, USNA) ; Sierra de los Cuchumatanes above Chiantla, Feb- 

 ruary 19, 1939, Standley 65607 (F). Dept. Quezaltenango: Volcan Santa Maria 

 above Palojunoj, March 6, 1939, Standley 67537 (F). Dept. Totonicapan: 

 between San Francisco El Alto and Momostenango, January 19, 1941, Standley 

 84084 (USNA). Dept. Quiche: Chichicastenango, May 9, 1937, Muenscher 

 12498 (F); south of Chichicastenango, January 11, 1939, Standley 62362 (F) ; 

 Standley 62395 (F, USNA); between Quiche and Totonicapam, May 16, 1906, 

 Cook 25 and 30 (US) ; between Quiche and San Pedro Jocopilas, January 12, 1939, 

 Standley 62458 (F). Dept. Chimaltenango: Garrucha, March 1892, Heyde and 

 Lux 3152 (G) ; Volcan Acatenango, February 6, 1907, Kellerman 6442 (F) ; Cumbre 

 del Aire, January 1, 1937, Johnston 514 (F) ; Finca La Alameda near Chimaltenango, 

 December 11-22, 1940, Standley 79797 (USNA); Barranco de la Sierra southeast 

 of Patzum, December 31, 1938, Standley 61628 (F, USNA); near San Martin 

 Jilotepeque, February 3, 1939, Standley 64401 (F, USNA). Dept. Guatemala: 

 near Finca La Aurora, 1940, Aguilar 444 and 44-8 (F). Dept. Sacatepequez: 

 between Mixco and Antigua, April 15, 1915, Trelease 43, 44, 43, 46, and 

 47 (111); near Antigua, November 1938-February 1939, Standley 63863 

 (F, USNA); highest point between Antigua and Vamos, July 30, 1860, Hayes 

 without number (G) ; Finca El Hato, northeast of Antigua, December 28, 1938, 

 Standley 61217 (F, USNA); Cuesta de las Cafias above Antigua, December 6, 



1938, Standley 58848 (F [2], USNA); San Lucas, April 1890, Smith 2189 (G, US); 

 October 21, 1916, Popenoe 681 (US, USNA) ; San Rafael, February 1892, Smith 

 2628 (G, US [2]); Volcan de Agua, above Santa Maria de Jesus, February 11, 



1939, Standley 65217 (F). Dept. Jalapa: between Jalapa and Mataquescuintla, 

 6 miles south of Miramundo toward Montana Miramundo, December 5, 1939, 

 Steyermark 32740 (F, USNA). 



Series Acatenangenses TreL, Mem. Nat. Acad. Sci. 20: 162. 1924. 



Medium-sized or large trees; twigs slender, glabrate; buds small, 

 ovoid, acute, glabrate or pubescent, the stipules caducous; leaves ever- 

 green, rather small, entire or rarely toothed, nearly glabrous; veins 

 branching and anastomosing, raised on both surfaces; petioles short 

 or moderately long, often winged; fruit biennial, medium-sized or 

 small, the cups cup-shaped or deeper, the scales narrowed, canescent 

 to glabrate. 



Range: Mountains of Guatemala and Chiapas, Mexico. 



Includes: Q. acatenangensis Trel. (type) and (?) Q. flagellifera Trel. 



35. Quercus acatenangensis TreL, Mem. Nat. Acad. Sci. 20: 163. 

 pi. 320. 1924. 



Quercus longifolia Liebm., Overs. DanskeVidensk. Selsk.Forhandl. 



1854: 185. 1854. Not Q. longifolia Raf., Alsog. Amer. 21. 



1838. 

 Q. acutifolia e longifolia A. DC. in DC. Prodr. 16 2 : 67. 1864. 

 Q. xalapensis var. longifolia Wenzig, Jahrb. K. Bot. Gart. Berlin. 



3: 210. 1884. 

 Q. donnell-smithii Trel., Mem. Nat. Acad. Sci. 20: 162. pi. 818. 



1924 (pro parte) — but not the type number, which is Q. sapotae- 



folia) . 

 Q. ambivenulosa Trel., Journ. Wash. Acad. Sci. 23: 62. 1933. 



