THE CENTRAL AMERICAN SPECIES OF QUERCUS 25 



EL SALVADOR,— Cerro de Apaneca, 1928, Calderon 2428 (F, US). 



HONDURAS.— Dept. Yoro: El Portillo Grande, July 1937, von Hagen 1011 

 (F, NY). 



COSTA RICA.— Cuesta de Tarrazu, April 1893, Tonduz 7871 (US). Prov. 

 Alajuela: Rio Ciruelas, March 1890, Pittier 2197 (US [isotype of Q. pilgeriana]) ; 

 La Ventana, on south slope of Volcan de Poas, February 17-18, 1924, Standley 

 84561 (F, US); Llano Bonito, May 22, 1941, A. Smith 2742 (USNA). Prov. 

 Heredia: Santa Barbara, June 1919, Lankester 241 (F). Prov. San Jose: 

 vicinity of Santa Maria de Dota, December 14-26, 1925, Standley 41707 (US); 

 Standley 42834 (F, US) ; December 26, 1925- January 3, 1926, Standley and Valerio 

 43403 (F, US). Prov. Puntarenas: Boruca, February 1891, Pittier without 

 number (US). 



Series Lancifoliae Trel., Mem. Nat. Acad. Sci. 20: 47. 1924. 



Series Boqueronaeae Trel., Mem. Nat. Acad. Sci. 20: 48. 1924. 



Large trees with glabrate twigs; buds rounded; leaves deciduous, 

 rather thick, medium-sized, oblong, subentire to coarsely toothed, 

 petioles moderately long; fruit large, the deep cups with the scales 

 immersed in thick tomentum with the apices protruding, the acorns 

 narrowly elliptic-oblong or cylindric, cotyledons unequal. 



Range: Chiapas and east-central Mexico to El Salvador and 

 Panama. 



Includes: Quercus boqueronae Trel., Q. panamandinaea C. H. Mull., 

 and several Mexican species of which Q. lancifolia Schlecht. and 

 Cham. 6 is the type. 



7. Quercus boqueronae Trel., Mem. Nat. Acad. Sci. 20: 48. pi. 33. 

 1924. 



Apparently a large tree. Twigs 1.5 to 2 mm. thick, fluted, glabrous, 

 gray with a few inconspicuous light lenticels. Buds rounded, scarcely 

 2 mm. in diameter, glabrous, brown, the stipules caducous or some- 

 times persistent about the terminal bud, about 5 mm. long, subulate- 

 ligulate. Leaves deciduous, rather thick and firm, about 5 to 8 or 

 10 cm. long and 1.5 to 3.5 cm. broad, lance-elliptic or oblong, acute 

 or ultimately minutely rounded apically, cuneate or almost rounded 

 at base, coarsely toothed above the middle or entire, the margins 

 minutely revolute, upper surface shiny, the lower dull, both quite 

 glabrous; veins about 10 or 12 on each side, irregular, much branched 

 and obviously anastomosing but ultimately passing into the teeth 

 where those are present, moderately raised on both surfaces; petioles 

 5 to 8 mm. long, very dark especially toward the base, glabrous. Cat- 

 kins? Fruit annual, solitary on glabrous peduncles 12 to 25 mm. long 

 and 2 to 3 mm. thick; cups deeply cup-shaped, about 1.5 to 2 cm. high 

 and 2 to 2.5 cm. broad, the margins often roughly fringed with pro- 

 jecting scales, the scales much thickened basally, rhombic in shape, 

 only the upper ones with narrowed apices, densely fulvous-tomen- 

 tose, the apices merely puberulent; acorns 3 to 4 cm. long, about 2 cm. 

 broad, elliptic-oblong to cylindric, dark shiny brown, glabrous, about 

 one-third to one-half included. (See pi. 20.) 



Range: Mexico, in the mountains of Chiapas, and El Salvador. 



Quercus boqueronae is not closely related to any other species in the 

 area under consideration. It is rather a relative of the east Mexican 



6 These authors are almost invariably cited as "Chamisso and Schlechtendal," which is the order in which 

 their series "Plantes Exped. Romanzoffiana" (Linnaea, vols. 1-10) is signed, except when Chamisso is the 

 sole author. However, the shorter concurrent series "Plantarum Mexicanarum (Schiede et Deppe col- 

 lectarum)" (Linnaea 5: 72-174, 206-236, 554-625: 6: 22-64, 352-384, 385-430. 1830-1831) was signed "Schlech- 

 tendal and Chamisso," and species described therein should be cited with the authors' names in that order. 



