APRIL 4, 1921 pittier: notes on swartzia 159 



Racemes axillary or terminal, 2- to 5-flowered, about equaling the petioles; 

 bracts small, setaceous; bractlets minute or none; peduncles short; pedicels 

 slender, 1 to 2 cm. long; buds globose, 6.5 mm. in diameter; segments of the 

 calyx 4, reflexed; petal yellow, orbicular, about 2 cm. in diameter; larger 

 stamens 12 to IS, the anthers oblong; smaller stamens numerous, the anthers 

 half shorter than those of the larger ones; ovary glabrous, narrow, recurved, 

 long-stipitate, S-to 10-ovulate, the style much shorter. 



Legume nearly 2.5 cm. long, obliquely ovoid-oblong, short-acuminate. 



Type Locality: West Indies. 

 Specimens Examined: 



Panama: Obispe Falls, Canal Zone, Hayes. Pinogana, South Dari^n, 

 in forest, flowers, June 21, 1914, Pittier 6676. 



6. Swartzia darienensis Pittier, sp. no v. 



Small spreading tree, entirely glabrous, 6 to 8 meters high, with short trunk 

 and pendent branches, the bark smooth, grayish. 



Leaves 1- or 3-foliolate, membranous; stipules linear, 4 to 6 mm. long, 

 caducous; petioles of the 1-foliolate leaves 5 to 7 mm. long, articulate and 

 provided at the tip with 2 stiff acute auricles; rachis of the 3-foliolate leaves 

 3 to 6 cm. long, canaliculate, marginate, with acute auricles at the insertion 

 of the leaflets ; leaflets petiolulate, ovate-elliptic or broadly lanceolate, rounded 

 or obtusely pointed at tip, the lateral ones 7 to 10 cm. long, 3 to 4 cm. broad, 

 the terminal one and the blade of the 1-foliolate leaves 12 to 16 cm. long, 

 5 to 6 cm. broad; petiolules 4 mm. long; veins very thin, almost parallel, 

 delicately reticulate-anastomosing. 



Racemes axillary or terminal, often geminate, 3- to 5-flowered; bracts and 

 bractlets linear, minutely pubescent, caducous; rachis 1.5 to 7 cm. long; 

 pedicels 5 to 10 mm. long, clavate, pubescent; segments of the calyx 4, ir- 

 regular, about 1 cm. long; petal pale yellow, irregularly ovate-cordiform, 

 emarginate at the base, about 2.5 cm. long (including the claw, this 5 mm. 

 long) and 3 cm. broad; larger stamens 4 to 9, the smaller ones very numerous, 

 the anthers slightly larger in the former but all alike and broadly ovate or 

 orbicular, with a dark connective; pistil incurved; ovary long-stipitate, 

 8-ovulate; style a little shorter than the ovary, capitellate. 



Legume not known. 



Type in the U. S. National Herbarium, no. 678872, collected on the rocky 

 slope of Mamei Hill, near Gorgona, Canal Zone, Panama, July 6, 1911, by 

 H. Pittier (no. 3800). 



There is certainly a great deal of confusion as to the segregation of the 

 several very nearly related forms of Swartzia in Panama, and the difficulty 

 of separating them is increased by the vagueness of the descriptions and the 

 lack of material. The species just described belongs without doubt to the 

 polymorphous group of S. myrtijolia, but it seems not to agree with the de- 

 scription of any of the species published. 



2. A little known species from GUATEMALA 



Swartzia guatemalensis (Donn. Sm.) Pittier. 



Swartzia myrtijolia var. guatemalensis Donn. Sm. Bot. Gaz. 33: 251. 1902. 



Section Pteropoda. vSmall tree, the branches slender, glabrous or minutely 

 appressed-pubescent. 



