,4 MISC. PUBLICATION 17 7, U. S. DEPT. OF AGRICULTURE 



between Chiquin and Trapiche Grande, April 19. 1905. Pittier 129 (US) ; Fiscal, 

 May 31. 1909. Deam 6087 (G. Mi. US); June 9. 1909, Deam 6218 (Mi, US); San 

 Antonio Mountain. January 11. 1906. Keller man 5028 (US [2]). Dept. Sacatepe- 

 quez: between Antigua and Guatemala. April 16. 1915. Trelease 53 (111 [2]). Dept. 

 Santa Rosa: Santa Rosa. May 1892. Heyde and Lux 3151 (G. US [2]); Aguacali- 

 ente. January 25. 1908. Kellerman 7 790 (F[2]); Municipio de Casillas, 1938-1939. 

 Aguilar 344 (F)- Dept. Zacapa: Sierra de las Minas. Finca Alejandria above 

 Rio Hondo. October 11. 1939. Steyermark 29697 (F). Dept. Jalapa: Rio 

 Jalapa, between Jalapa and San Pedro Pinula. December 9. 1939. Steyermark 

 32937 (F. USXA); vicinity of Jalapa. November 7-18. 1940. Standley 77394, 

 76739. and 76752 (USXA) ; between Jalapa and Paraiso. November 14, 1940. 

 Standley 77241 (USXA). 



HONDURAS. — Dept. Tegucigalpa: Mont, de la Flor, near Tegucigalpa, 

 December 13. 1937, von Hagen 1219 (F, NY); December 15. 1937, von Hagen 1246 

 (F, NY). 



40. Quercus brenesii TreL, Mem. Nat. Acad. Sci. 20: 186. pi. 377. 

 1924. 



Medium-sized or large tree. Twigs 1 to 2 mm. thick, fluted, 

 glabrous, or from loosely or closely fulvous-tomentose promptly or 

 tardily glabrate and dark reddish brown with few small light lenticels, 

 graying the second or third season. Buds 2 to 3 mm. long, ovoid and 

 obtuse when young, becoming 4 or 5 mm. long and narrowly fusiform, 

 glabrate, glossy brown; the ligulate stipules 4 or 5 mm. long, early 

 caducous. Leaves deciduous, thin and membranous. 6 to 12 or even 

 15 cm. long, 1.5 to 3 cm. broad, lanceolate to linear-lanceolate, apex 

 long-acute or long-acuminate, base narrowly cuneate or merely acute, 

 in one short-petioled form cordulate. coarsely or finely toothed above 

 the middle or rarely entire, the teeth broadly spreading, acute and 

 aristate-tipped. both surfaces from buff-steUate-tomentulose becoming 

 glabrate and lustrous except the under surface sometimes rather 

 sparsely pubescent along the midrib; veins about 10 or 12 to 15 or 

 rarely more* on each side, branching and rather obscurely anastomosing 

 but finally passing into the teeth where these are present, raised on 

 both surfaces, (including the very fine reticulum) or the principal ones 

 rarely impressed above and raised within the grooves: petioles 2 to 6 

 mm. long, obscurely or prominently winged, glabrate with the twigs. 

 Staminate catkins about 6 cm. long, very loosely flowered, rachis 

 from stellate-tomentose glabrate. the perianth persistently tomentose, 

 the oblong and obviously apiculate anthers moderately or well exsert- 

 ed. Pistillate catkins about 5 mm. long, distally 1- or 2-flowered. Fruit 

 annual, solitary or paired on a peduncle 5 to 10 mm. long; young cups 

 with closely appressed broadly rounded ovate or oblong gray- or 

 buff-pub erulent scales, markedly constricted at base or not. Mature 

 fruit not seen. (See pis. 110 and 111.) 



Range: Central Costa Rica (about 600 to 1.200 in.). 



Quercus brenesii is distinguished from the other annual-fruited 

 species of the series AcutifoUae. except Q. gracilior. by its very narrow 

 leaves toothed only above the middle. From Q. gracilior it is dis- 

 tinguished by its peduncled fruit and its early caducous ligulate 

 stipules. 



Specimens examined: 



COSTA RICA. — Dept. Alajuela: La Palma de San Ramon, December 7, 

 1926, Brenes 5178 and 5194 (F) : June 27, 1927. Brenes 5566 (F); August 3-10, 

 1935. Quiros 187 (F) : between La Palma and El Socorro de San Ramon, July 24, 

 1928, Brenes 6224 (F); between San Ramon and La Palma [de San Ramon], 

 January 17. 1928. Brenes 6010 (F)j between Cerro del Mondongo and Santiago 



