108 Proceedings of the Biological Society of Washington. 



Cedrela discolor Blake, sp. nov. 



Tree; branches stout, lenticellate, fuscous or grayish, essentially glab- 

 rous; leaves alternate, abruptly pinnate, with 8 pairs of leaflets; petiole 

 stout, 9 cm. long, sub terete, sulcate above, glabrous; rachis similar, 32 to 

 37 cm. long, obscurely puberulous above between the bases of the leaflets; 

 petiolules obscurely puberulous above, 1 to 4 mm. long; leaflets opposite, 

 the lowest pair ovate, 5.5 to 7.5 cm. long, 3 cm. wide, the second pair 

 similar but larger, 9.5 to 10.5 cm. long, 3.5 cm. wide, the others oblong or 

 elliptic-oblong, 13 to 17 cm. long, 3.5 to 4.3 cm. wide, slightly inequilateral, 

 acuminate and somewhat falcate, rounded-cuneate at base, above deep 

 green, lucid, glabrous, beneath softly and very densely cinereous-pilosulous 

 with curved spreading hairs except on the costa and the chief veins, the 

 costa and the 18 to 20 pairs of lateral veins yellowish white and prominent 

 beneath, the costa impressed above, the lateral veins prominulous, the 

 secondaries and tertiaries prominulous-reticulate both sides; panicle 

 axillary, ovoid, branched from the base, 29 cm. long, 13.5 cm. wide, the 

 branches densely floriferous from near the base, only the ultimate branches 

 sordid-puberulous ; cymules crowded, about 7-flowered; pedicels 1 mm. 

 long or less; calyx cup-shaped, 1.8 mm. high, loosely sordid-puberulous, 

 5-toothed for about half its length, the teeth deltoid, acute; corolla densely 

 rufidulous-pilosulous outside with matted hairs, more sparsely pilose within, 

 9 mm. long; petals 4 or 5, 2 exterior and 2 interior, or quincuncial, oblong; 

 stamens 4 or 5, glabrous; filaments subulate, 4.5 mm. long; anthers oval, 

 emarginate, 1.5 mm. long; pistil and column 8.5 mm. long; ovary ovoid, 

 glabrous, 2 mm. long, 5-celled; style slender, 3.5 mm. long, glabrous. 



Type in the U. S. National Herbarium, no. 571205, collected at San 

 Ramon, Durango, Mexico, April 21 to May 18, 1906, by Edward Palmer 

 (no. 184). 



This handsome species may be easily recognized by its very densely 

 flowered panicles of medium-sized rufidulous flowers and its large leaves, 

 deep green and shining above and densely cinereous-pilosulous beneath. 

 It appears to be nearest C. saxatilis Rose. 



Cedrela rosei Blake, sp. nov. 



Tree; branchlet fuscous, angled, finely spreading-puberulous with 

 sordid curved hairs; leaves abruptly pinnate, with 13 pairs of leaflets; 

 petiole stout, densely sordid-puberulous with curved hairs, 10 cm. long, 

 the rachis similar, sulcate, 52 cm. long; petiolules sordidly tomentose- 

 pilosulous, 3 to 4 mm. long; leaflets opposite below, those of the upper pairs 

 about 1.5 cm. apart, the lowest one or two pairs ovate, 5.5 to 8 cm. long, 

 the others oblong or slightly ovate-oblong, 10.5 to 15.5 cm. long, 3.5 to 

 4.5 cm. wide, slightly inequilateral, short-acuminate, at base subequal and 

 slightly cordate or broadly rounded, coriaceous, above deep green, shining, 

 persistently pilosulous and sparsely glandular along costa, sometimes so 

 along some of the lateral veins, otherwise glabrate, ciliolate, beneath dull 

 green, densely sordid-pilosulous along costa and lateral veins, tufted in the 



