510 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 
23. Rinorea marginata (Triana & Planch.) Rusby; J. R. Johnston, Proc. Bost. 
Soc. Nat. Hist. 34: 238, 1909. 
Alsodeia marginata Triana & Planch, Ann. Sci. Nat. IV. Bot. 17: 127. 1862. 
Tree; branchlets densely spreading-puberulous, glabrate; leaves opposite ; 
petioles densely puberulous, 8 to 5 mm. long; blades oval to oblong-elliptic, 
6 to 11 cm. long, 2.4 to 4.8 em. wide. short-acuminate, at base equal and 
cuneate, with thickened strictly entire margin, coriaceous, prominulous-retic- 
ulate especially beneath, above light green, glabrous or densely spreading- 
puberulous along costa, beneath sparsely strigose along costa or densely and 
softly rufidulous-puberulous with spreading hairs over whole surface, then 
also ciliolate on margin; racemes (immature) puberulous, about 2 em. long, 
the pedicels short: sepals deltoid-ovate to suborbicular-ovate, 1.5 to 2 mim. long, 
acutish to obtuse, apiculate, strongly striate-veined, ciliolate, otherwise gla- 
brous; petals (scarcely mature) ovate, 4.7 mm. long, obtuse, ciliolate below 
middle and at apex, erect; stamens 3.8 mm. long, the filaments broad, 0.5 mm. 
long, adnate throughout to the glands, these rounded and free for 0.3 mm. 
at apex of filament, the anthers oblong, 1.8 mm. long, 2-aristate, the connective 
scales oblong-ovate, 3.3 mm. long, obtuse, glabrous, obscurely erose below ; ovary 
densely hispid, the placentae 4-ovulate; “capsule trigonous-oblong, 3.5 cm. 
long, veiny; seeds 2 to each placenta,” globose, 7 mm. in diameter, mottled, 
densely rufid-puberulous. 
TYPE LOCALITY: Pass of Opia, along the Rio Magdalena, Colombia. 
SPECIMENS EXAMINED: 
CoLOMBIA: Pass of Opia, along the Rio Magdalena, Provinces of Bogota 
and Mariquita, altitude 600 meters, T'riana (type collection; Y, photo- 
graph and fragment N). 
This species is very distinct in its thick, entire, marginate leaves. The 
sheet examined bears two branches and a pocket containing a single seed. 
The branches are remarkably dissimilar.- One, a small piece bearing four 
leaves and a short raceme with the flowers in bud only, has the leaves strictly 
glabrous except for a few appressed hairs on the costa beneath. In the other, 
an ample branch bearing a couple of still younger racemes, the leaves are 
puberulous on the costa above, and densely and softly rufid-puberulous beneath, 
with the margins ciliolate. Triana’s description was drawn up to cover both. 
In view of the entire agreement of the leaves in all other features than 
pubescence, I can only consider them as two extremes of a Single species, 
which in this respect shows a variation unequaled by any other American 
member of the genus. Field observations on the species are greatly to be 
desired, 
This species has been confused in herbaria with R, melanodonta. As origi- 
nally published, the combination Rinorea marginata referred entirely to the 
latter species, which is at once distinguished by its sharply serrulate leaves, 
as well as by its shorter filaments, somewhat different glands, fewer ovules, 
and smaller capsule. 
24. Rinorea brachythrix Blake, sp. nov. Puiate 34. 
Shrub; branches in age sparsely hirtellous or glabrate; leaves opposite ; 
petioles hirtellous, 8 to 14 mm. long; blades oblong-elliptic, 11.5 to 16 cm. long, 
3.8 to 5.3 cm. wide, acuminate, at base cuneate or cuneate-rounded, repand- 
serrulate with acute black gland-tipped teeth, coriaceous and strongly pro- 
minulous-reticulate, sparsely hirtellous on costa above, sparsely strigose on 
costa beneath; racemes terminal, 2 to 4 cm. long, fulvescent-puberulous with 
spreading hairs, the pedicels 2 to 4 mm. long; sepals ovate, 2 to 2.5 mm. long, 
acute, firm, scarcely striate, ciliolate, strigillose chiefly above; petals yellow, 
