BLAKE: REVISION OF MAHOGANIES 295 



Groth. Botanic Garden, Port of Spain, Trinidad, December, 1913, 

 Mell. Botanic Garden, Buitenzorg, Java, 1903 ("e Calcutta"). 



The genus Swietenia has generally been described as having 

 abruptly pinnate leaves. Many of the leaves of the writer's 

 no. 7866, however, are odd-pinnate, with the unpaired terminal 

 leaflet smaller and somewhat less asymmetric than the next 

 pair, and borne on a prolongation of the rachis about 2 cm. 

 long. A few of the specimens of 5. mahagoni show similar leaves. 



Specimens with leaves and fragmentary fruits in the Gray 

 Herbarium, collected on low hills in the valley of the Rio Negro, 

 Guaguaqui, Boyaca, Colombia, July 14, 191 7, by H. N. Whitford 

 & J. Pinzon (no. 10), and recorded by Macbride^^ as S. macro- 

 phylla, probably belong to this species but are too incomplete to 

 be satisfactorily determined. The local names are given by 

 Whitford as "cedro caoba" and "cedro mondi." Material in the 

 Kew Herbarium, said to have been collected by Antoine at 

 Cartagena, Colombia, has been referred to this species by Rolfe 

 in his recent paper on the genus. 



4. Swietenia candoUei Pittier, Journ. Wash. Acad. Sci. 10: 33. 1920. 

 Venezuela Mahogany. 

 Tree up to 40 meters high; branchlets gray, lenticellate, those of the 

 year fuscous green, glaucous; leaves with 3 to 5 pairs of leaflets; petiole 

 6 to 9.5 cm. long, the rachis 5.5 to 20 cm. long; leaflets 6.5 to 13 cm. 

 long, 2.5 to 4.5 cm. wide (the lowest pair sometimes only 5 cm. long), 

 oval or oval-ovate to oblong-elliptic, short-acuminate and usually 

 falcate at apex, with a flat or slightly twisted cusp 3 mm. long or less, 

 cuneate to rounded at base, prominulous-reticulate on both sides, paler 

 green beneath; petiolules slender, 6 to 12 mm. long; panicles axillary, 

 9 to 18 cm. long (including the 5 to 8 cm. long peduncle), 3 to 6 cm. wide, 

 loose; pedicels 2 to 4 mm. long; calyx i mm. long, 5-lobed for about 

 one-third its length, the lobes semicircular," broadly rounded, finely 

 erose-ciliolate; petals yellowish white, 4.5 to "6.5" mm. long, 2,-3 mm. 

 wide, oval-oblong, broadly rounded, unequally and broadly cuneate at 

 base, finely erose-ciliolate throughout; staminal tube 3.8 mm. long, 

 glabrous, its teeth triangular-ovate, acuminate; disk crenulate, papillose, 

 nearly half as long as ovary; pistil 3.5 mm. long; ovary 5-celled, the 

 ovules in two rows of 6 or 7 in each cell ; style columnar, slightly shorter 

 than ovary; stigma large, barely crenulate, slightly broader than ovary; 

 fruit 9 to 14 cm. long, 6 or 9 cm. thick, ovoid, obtuse, dehiscing usually 

 from the apex; seeds deep chestnut brown to ferruginous, 9 to 9.5 cm. 

 long, 2.5 to 3 cm. wide. 



15 Contr. Gray Herb. N. S. 56: 54. 1918. 



