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



linear-lanceolate or ovate-lanceolate or elliptic, apex long- or short, 

 acuminate, base rounded to usually cuneate or attenuately acute- 

 entire, margins minutely revolute, usually finely crisped, upper surface 

 glabrate and shiny, lower surface glabrate or persistently tomentose 

 along the midrib, dull; veins 8 to usually 10 or 12 on each side, re- 

 peatedly branching but obscurely anastomosing near the margin, 

 very slightly or rather clearly raised above, or slightly impressed, 

 somewhat more prominent beneath, the reticulum slightly raised on 

 both surfaces; petioles 5 to usually 10 or rarely even 17 mm. long, 

 rather prominently winged, glabrate. Staminate catkins 4 or 5 cm. 

 long, rather loosely flowered, sparsely crisped-villous, the apiculate 

 anthers slightly exserted. Pistillate catkins about 1 cm. long, 2- to 4- 

 flowered along a slender glabrate peduncle. Fruit annual, rather 

 small, solitary or paired on a peduncle 2 to 10 mm. long and as much 

 as 3 mm. thick; cups goblet-shaped or deeper, 12 to 14 mm. broad, 

 about 5 to 10 mm. high, the scales triangular-ovate, apices rounded, 

 appressed, minutely sericeous-puberulent but the apices and margins 

 glabrate and glossy brown; acorns about 12 to 15 mm. long, 11 or 12 

 mm. broad, subrotund to ovoid, loosely buff-puberulent, light brown 

 where abraded, about one-fourth or one-third included; abortive 

 ovules basal or lateral to subapical. (See pis. 76 to 78.) 



Range: Mountains of central Costa Rica to upper Panama (1,000 

 to 2,400 m.). 



Quercus seemanni differs from the other species of the series in its 

 moderately petioled, relatively small leaves with long-acuminate 

 apices. Q. rapurahuensis differs to no appreciable degree. The 

 name Q. chiriquiensis is ascribed to Trelease in several herbaria, 

 although it has never been published. 



Specimens examined: 



COSTA RICA. — Prov. Alajuela: Palmira, near Zarcero, October 1, 1937, A. 

 Smith 4@4 (F> MBG, USNA). Prov. Heredia: Quebradas above San Isidro, 

 July 5, 1932, Stork 3131 (F). Prov. San Jose: about Santa Maria, Mav 4, 1928, 

 Stork 1745 (F); May 27, 1928, Stork 2420 (F) ; San Lorenzo de Dota, March 4, 

 1890, Pittier 2262 (US); Copey, Feb. 1898, Tonduz 11697 (US); March 1898, 

 Tonduz 11795 (NY [2], US [3] [isotypes of Q. rapurahuensis])] Santa Rosa de 

 Copey, April 1898, Tonduz 12231 (US [2]); El Copey, Tarrazu, March 1918, 

 Jimenez 1086 (US); near Finca La Cima, above Los Lotes, north of Copey, 

 December 21-22, 1925, Standley 4-2558 (US); near Quebradillas, north of Santa 

 Maria de Dota, December 24, 1925, Standley 4^985 (US). 



PANAMA. — Prov. Chiriqui: labeled "Veraguas" and without locality or 

 date, Seemann without number (G, NY [isotypes]) ; Cerro Vaca, eastern Chiriqui, 

 December 25-28, 1911, Pittier 5305 (F, G, NY, US); Distr. Boquete, Volcan 

 Chiriqui, July 12, 1938, Davidson 909 (F) ; vicinity of Casita Alta, Volcan Chiriqui, 

 June 28-Julv 2, 1938, Woodson, Allen, and Seibert 796 (NY, USNA) ; Camiseta, 

 Volcan Chiriqui, February 13, 1940, Terry 1337 |(MBG); Boquete, May 20, 

 1938, Davidson 677 (F); June 26, 1938, Davidson 780 (F [tvpe of Q. boquetensis]) ; 

 Salto Boquete, Januarv 8, 1939, Terry 1258 (F, MBG) ; Bajo Chorro, March 25, 

 1938, Davidson 437 (F, MBG); March 4, 1938, Davidson 721 (F) ; upper valley 

 of Rio Chiriqui Viejo, between Paso Ancho and Monte Lirio, January 16, 1939, 

 Allen 1595 (USNA). 



31. Quercus gulielmi-treleasei sp. no v. 14 



Quercus chiriquina Trel., in herb. 



Large tree. Twigs 1.5 to 3 mm. thick, fluted, from fulvous-stellate- 

 tomentose becoming glabrate or sparsely floccose, reddish brown with 



w Quercus gulielmi-treleasei sp. nov.— Arbor grandis, ramuli 1.5-3 mm. crassi glabrati, folia decidua (?) 

 18-25 cm. longa lanceolata longe acuminata glabra vel costa subtus stellata excepta, venis utrinque 18-20 

 ramosis et anastomosantibus utrinque prominentibus, petioli 2-4 mm. longi alati, fructus annuus (?) pe- 

 dunculatus, cupula 13-18 mm. lata, squamae appressae, glans hemispherica vel ovata 1/5 vel onmino inclusa, 

 ovula abortiva basalia. 



