186 FIELD COLUMBIAN MUSEUM BOTANY, VOL. 2. 



Citharexylum crassifolium, sp. nov. 



Stem terete, covered with a grayish bark; ultimate branchlets 

 subtetragonal, compressed at the nodes, striate, pubescent: leaves 

 opposite, petiolate, oblong to oblong-lanceolate, including the petiole 

 5 to 13.5 cm. long, 2 to 5 cm. broad, obtuse or retuse, entire, revo- 

 lute-margined, narrowed at the base into the petiole, dull green 

 and minutely scabrellous above, conspicuously reticulate-nerved and 

 pubescent beneath; petioles 0.5 to i cm. long, stout, 2 to 5 mm. thick, 

 canaliculate, puberulent: racemes terminal and solitary or several and 

 paniculately disposed, short-hirsute; bracts minute, triangular, acute, 

 about equaling the pedicels: flowers in anthesis 4 to 5 mm. long: 

 calyx narrowly campanulate, 2 to 2.5 mm. long, 5-angled in cross sec- 

 tion, shallowly sinuate, 5-denticulate, externally minutely pubescent: 

 corolla tubular-funnelform, about twice as long as the calyx; tube 

 externally glabrous, pubescent within, especially in the throat; lobes 

 subequal, ovate-rotund, i to 1.5 mm. long and broad, pubescent on 

 both surfaces: perfect stamens 4, the fifth reduced to a minute stami- 

 nodium : ovary and style glabrous : mature fruit unknown. C. cinereum, 

 Donnell Smith, Enum. PI. Guat. ii. 60 (1891), and vi. 33 (1903), not 

 L. GUATEMALA. Department of Baha Vera Paz, in forests of Santa 

 Rosa, altitude 1520 rn., July, 1887, H.-von l^uerckheim, no. 1308 (hb. 

 John Donnell Smith). This species has been confused with C. cinereum, 

 L. , from which it is readily separated on leaf -character alone. The 

 leaves in C. crassifolium are thicker or more leathery in texture, dull 

 green and not conspicuously reticulate-veined above, and furthermore 

 the calyx is smaller than in C. cinereum ? L. 



Citharexylum Donnell-Smithii, sp. nov. 



Tree: stem covered with grayish bark; ultimate branches terete, 

 compressed at the nodes, reddish-brown, striate, dotted with scattered 

 lenticels: leaves opposite or rarely subalternate, petiolate, lanceo- 

 late to lance-oblong, rarely ovate, including the petiole 0.5 to 2.1 dm. 

 long (mostly i to 2 dm.), 2 to 5.5 cm. broad, usually acuminate and 

 acute, occasionally obtuse, entire, slightly if at all revolute-margined, 

 rather gradually narrowed at the base into the petiole, green above, a 

 little paler and inconspicuously punctate beneath, glabrous on both 

 surfaces, bearing i to several small glands at the junction of blade and 

 petiole and an occasional gland on the under side of the lamina; mid- 

 rib and lateral nerves rather prominent especially on the under side of 

 the leaf ; petioles i to 3 cm. in length: inflorescence terminal; racemes 

 0.5 to 3.5 dm. in length, solitary or several and paniculately disposed, 

 glabrous; bracts minute, subulate, mostly shorter than the 2 to 3 mm. 

 long pedicels: flowers numerous, about 6 mm. long in anthesis: calyx 

 tubular-campanulate, approximately 3 mm. long, strongly 5-angled in 

 cross section, sinuately 5-dentate, ciliolate, otherwise glabrous: corolla 

 about twice exceeding the calyx, tubular-campanulate, subequally 

 5-lobed, externally glabrous, pubescent within; lobes oblong about 2 

 mm. long, rounded at the apex, pubescent on the upper or inner 

 surface, glabrous on the outer or lower surface: perfect stamens 4, 

 slightly projecting beyond the tube of the corolla: ovary and style 



