THE CENTRAL AMERICAN SPECIES OF QUERCUS 73 



fulvous-pubescent or in age gray-pubescent or glabrate ; acorns about 

 16 or rarely 20 mm. long, 13 or rarely 20 mm. broad, ovoid to subro- 

 tund, rounded apically, from minutely puberulent becoming glabrate 

 and light brown, about one-third included. (See pis. 105 to 109.) 



Range: Chiapas and the Cordillera region of Mexico to Guatemala 

 and Honduras (900 to 2,800 m.). 



Quercus conspersa is the most abundant species of the series Acuti- 

 foliae in Central America. Its long-acute leaf apices, thick blades, 

 and small fruit amply distinguish it from Q. skinneri, the only other 

 biennial-fruited species of the series in our range. 



The varieties coyulana and nelsoni referred by Trelease to Q. grahami 

 Benth. obviously belong to Q. conspersa, although the species Q. 

 grahami is apparently distinct. The form called Q. correpta is a mix- 

 ture of a sterile, entire-leaved specimen of Q. conspersa and detached 

 fruits of Q. sapotaejolia. The element here referred to Q. conspersa is 

 illustrated and described by Trelease in terms that unmistakably 

 identify it with this species. For further discussion of this situation 

 see Q. polymorpha. 



Specimens examined: 



MEXICO.— Oaxaca: San Miguel Albarradas, July 2, 1894, Nelson 533 

 (US [3] [types of Q. grahami var. nelsoni]) . Chiapas : between Bahucuc and 

 Yaxha, March 23, 1896, Seler 2583 (AA) ; Los Pinos, June 2, 1904, Goldman 1054 

 (US); Teopisco, December 30, 1906, Collins and Doyle 118 (US); Mount Paxtal 

 [spelled "Pasitar" on labels], December 29, 1936, Matnda 471 (Mi, US, USNA) ; 

 Mount Ovando, November 14-18, 1939, Matuda 3927 (USNA); Mount Male, 

 near Porvenir, July 6, 1941, Matuda 4653 (USNA) ; Nuevo Amatenango, July 17, 

 1941, Matuda 4748 (USNA) ; Coapilla, March 1939, Martinez 389 (USNA). 



GUATEMALA.— Without further data, Hartweg 617 (NY [isotype]); Skinner 

 without number (NY); Warscewicz 26 (G) ; 1892, Heyde 1 (US). Dept. Huehue- 

 tenango: without exact locality, September 4, 1934, Skutch 1133 (F. Ill); hills 

 east of Aguacatan, January 14, 1939, Standley 62553 (F, USNA); 10 km. 

 east of Huehuetenango toward Aguacatan, January 2, 1941, Standley 82076, 

 82104, and 82168 (USNA); northwest of Malacatancito, 8 km. from Huehue- 

 tenango, January 4, 1941, Standley 82183 and 82213 (USNA); mountains south- 

 west of Malacatancito, January 14, 1939, Standley 62613 and 62617 (F, USNA) 

 Rio Pucal, February 20, 1939^ Standley 65830 (F, USNA); Rio Pucal, 14 km 

 south of Huehuetenango, January 4, 1941, Standley 82331 and 82346 (USNA) 

 east of San Sebastian, December 29, 1940, Standley 81437 (USNA) ; near crossing 

 of Rio San Juan Ixtan, east of San Rafael Petzal, January 9, 1941, Standley 83011 

 and 83044 (USNA). Dept. Quezaltenango: lower north slopes of Volcan de 

 Santa Maria above Palojunoj, January 15, 1941, Standley 83474 (USNA); toward 

 San Juan Ostuncalco from Palestina, January 21, 1941, Standley 84360 (USNA). 

 Dept. San Marcos: Volcan Tajumulco, southwest of Tajumulco, February 25, 

 1940, Steyermark 36566 (F) ; February 26, 1940, Steyermark 36615 (F, USNA). 

 Dept. Quiche: Rio Negro, March 1892, Heyde and Lux 3154 (G, US [2]) ; Zacualpa, 

 without date, Wauchope 7 (Mi) ; great barranco of Rio Blanco, above Sacapulas, 

 January 12, 1939, Standley 62495 (F, USNA). Dept. Chimaltenango: Chicha- 

 vac, March 4, 1933, Skutch 315 (US); Lake Nyarza, April 8, 1936, Lewis 305 (F) ; 

 between Chimaltenango and San Martin Jilotepeque, November 25, 1938, 

 Standley 57912 and 57923 (F, USNA) ; December 22, 1940, Standley 80865 and 

 80872 (USNA). Dept. Baja Verapaz: above Purulha, June 1904, Cook 288 

 (US); Santa Rosa, June 5, 1904, Cook 247 (US); October 1912, Tiirckheim 3898 

 (US); hills north of Santa Rosa, March 30, 1939, Standley 69701, 69716, and 

 69824 (F); between Santa Rosa and Purulha, June 1904, Cook 278 (US); Cuesta 

 de Chuacus, near Salama, April 19, 1905, Pittier 131 (US [2]) ; above Salama, 

 February 1940, Lewis 1117 and 1118 (F) ; between Salama and Rabinal, May 31, 

 1904, Cook and Doyle 282 (US); Rabinal, May 9, 1906, Cook 14 (US). Dept. 

 Guatemala: Finca La Aurora, 1939, Aguilar 160 (F) ; about Guatemala, July 

 1860, Hayes without number (G [2]) ; hills between Guatemala and San Raimundo, 

 Januarv 18, 1939, Standley 62947 and 63012 (F, USNA); Finca Bretana, between 

 Guatemala and Fiscal, December 12, 1938, Standley 59741 and 59747 (F, USNA) ; 



