234 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
FABACEAE. 
NEW OR IMPERFECTLY KNOWN SPECIES OF SEVERAL GENERA. 
Sweetia panamensis Benth. Journ. Linn. Soc. Bot. 8: 263. 1865. 
A middle-sized tree with rounded crown. 
Leaves alternate, imparipinnate; rachis, petiolules, and main nerve of the 
leaflets minutely hairy, the rachis slender, canaliculate, 6 to 12 em, long; 
leaflets 7 to 18, opposite or subopposite, petiolulate, very caducous; petiolules 
8 mm. long, terete; leaflet blades ovate-lanceolate, broadly cuneate at the base, 
rounded and emarginate at the broad tip, 2.5 to 5 cm. long, 1.7 to 2.5 cm. 
broad, inequilateral, coriaceous, dark green and lustrous above, pale beneath. 
Stipules very caducous or absent. 
Inflorescence consisting of branched panicles in the axils of the terminal 
leaves. Rachises minutely pilose, the primary one 8 to 14 cm. long, the second- 
ary ones successively shorter, 5 to 2 cm. long. Flowers numerous, pedicellate; 
pedicels 3 mm. long, pubescent, provided with 2 opposite, acicular, hairy, per- 
sistent bractlets about 11 mm. long; calyx persistent, about 3 mm. long, pubes- 
cent without, divided to the middle into 5 acute lobes; petals 5, spatulate, 
long-unguiculate, the blade suborbicular, slightly emarginate at the tip, the 
anterior one smaller (3.5 to 4 mm. long) with reduced blade, the 4 remaining 
more or less equal, about 6.4 mm. long and 8 mm, broad. Stamens 10, almost 
equal, quite glabrous, about 6 mm. long; anthers ovoid, dorsifixed, longitudi- 
nally dehiscent. Pistil glabrous, stipitate, oblique, about 8 mm. long; ovary 
3-ovulate; style attenuate to an undivided acumen, persistent. 
Legumes 1 or 2 to each spikelet, 5 to 7.5 cm. long by 1.5 cm. broad, 1 or 2- 
seeded, elliptic-lanceolate, quite flat, narrowing toward the base into a slender 
stipe, pedicellate, the pedicel as in the flower. Seeds small, ovoid, slightly de- 
pressed, reddish brown, with a black line on the edge below the hilum, about 
6 mm. long by 5 mm. broad and 3 mm. thick; hilum small, ovate. 
Type in the Kew Herbarium. 
COLLECTIONS: 
PanaMA: Near Paraiso, Canal Zone, in woods, Sutton Hayes 267, type. 
Experiment Station at Matias Hernfindez, near Old Panama, flowers, 
September 20, 1914, fruits, October, 1914, Pittier 6798. Also reported 
from southern Darién. 
Notwithstanding the vagueness of Bentham’s description, the identity of his 
S. panamensis with our specimens is quite evident. The tree is known in 
I'anama under the name of “ malvecino.” 
Platypodium maxonianum Pittier, sp. nov. 
A tree 20 to 25 meters high. Trunk usually straight, 12 to 15 meters high, 
and up to 1.2 meters in diameter at the base; bark grayish, more or less rimose 
and shaggy. 
Leaves alternate, with-10 to 20 leaflets. Rachis 10 to 20 cm. long, slender, 
thickened at the base, broadly canaliculate above, more or less pubescent, the 
petiolar portion 1.5 to 2 cm. long. Leaflets subcoriaceous, very oblique, the 
terminal one sometimes replaced by a setulose appendage 7 to 9 mm. long; 
petiolules 1 to 2 mm. long, terete, blackish, sparsely pubescent; leaflet blades 
elliptic-oblong, subcuneate at the base, rounded, emarginate, and mucronulate at 
the apex, light green, lustrous and more or less pubescent along the midvein 
above, paler and pubescent near the base and along the midvein beneath, 8 to 6 
cm. long, 1.5 to 2 em. broad, the smaller leaflets at the base of the leaf; veins 
