292 BLAKE: REVISION OF MAHOGANIES 



The description of the floral details, which differs in some 

 minor features from that of Zuccarini, has been that drawn up 

 from the sheet in the Gray Herbarium collected in Oaxaca by 

 Duges, which was originally recorded in the Botanical Gazette. ^■- 

 Prof. Duges gives the native name as "cobano." The species is 

 easily distinguished by its comparatively small and attenuate 

 subsessile leaflets. 



Solereder^^ has made a careful microscopical examination of 

 seeds of this species purchased of a drug-dealer in the Puebla 

 market, and said to be very poisonous. Solereder finds that 

 what had previously been described as albumen is in reality a 

 part of the cotyledons. He finds, however, that a small amount 

 of true albumen is present in the seeds. 



Rose^^ states that the seeds of a Swietenia, referred to this 

 species with some doubt, were sold by Indian peddlers near 

 Acaponeta, Tepic, and were made into a tea which was taken for 

 pains in the chest. The native name was given as "flor de 

 venodillo (venadillo) . ' ' 



2. Swietenia cirrhata Blake, sp. nov. 



Tree; branchlets grayish brown, lenticellate; leaves with 3 to 6 pairs 

 of leaflets; petiole 3 to 7.5 cm. long, the rachis 9 to 20 cm. long, termi- 

 nated by a cusp 2 to 7 mm. long; leaflets 8.5 to 14 cm. long, 3 to 5 cm. 

 wide, subopposite below, opposite above, obliquely ovate or elliptic- 

 ovate, acuminate, tipped by a filiform twisted cusp 3 to 13 mm. long, 

 acute to rounded at base, subsessile, pergamentaceous to subcoriaceous, 

 pale green, glaucescent especially beneath, prominulous-reticulate on 

 both sides, with 9 to 10 pairs of lateral veins; panicle 23 cm. long (in- 

 cluding the 8 cm. long peduncle), 15 cm. wide; pedicels 1.5 to 2 mm. 

 long; calyx 0.8 to i mm. long, 5-lobed to middle, the lobes broadly 

 deltoid or suborbicular, broadly rounded, ciliolate; petals 5, oval- 

 oblong, rounded, erose-ciliolate throughout, 4.8 mm. long, 2.8 mm. 

 wide; staminal tube glabrous, 3.8 mm. long, the 10 teeth triangular- 

 ovate, acutish; disk crenulate, papillose, half as long as ovary; pistil 

 4.5 mm. long; style about a quarter longer than ovary; seeds light 

 brown, similar to those of 5. hiimilis. 



T3pe in the U. S. National Herbarium, no. 399294, collected at La 

 Salada, Michoacan, Mexico, March 15 to 22, 1903, by E. W. Nelson 

 (no. 6925). 



1' Bot. Gaz. 10: 430. 1885. 



*' Archiv. Pharm. 229: 249-258. PI. 1891. ' 



1* Contr. U. S. Nat. Herb. 5: 229. 1899. 



