22 New Species of South American Plants 



shortly and broadly mucronate summit, entire, ciliate, thin, 

 drying deep-purple or blackish, the upper surface sparsely 

 short-pilose, except the veins, which are tomentose, the lower 

 surface yellowish-tomentose, the venation not prominent, the 

 secondaries about lo on a side, strongly ascending, little curved. 

 Leaves of the preceding season (but one seen) nearly 2.5 dm. 

 long, of similar form, thick, glabrate above, with the midrib 

 and secondaries impressed, and more or less pilose, the fine 

 venation prominent, very finely reticulate so as to make the 

 surface pitted or tesselate, drying brownish. Panicles lax, 

 with few branches, on slender peduncles longer than them- 

 selves. Bractlets minute, the flowers sub-sessile. 



Staminate flower. — Perigone segments 2.5 mm. long, ovate, 

 obtuse, thick and rigid. Outer and middle stamens nearly as 

 long as the segments, adnate to their base, the free portion of 

 the filament very short. Inner set longer, the pair of large 

 glands at the summit of the filament twice as wide and about 

 as long as the anther. Sterile set two-thirds the length of the 

 third set, ovate, acuminate and acute. Pistil rudimentary, as 

 long as the staminodia, acute, entire. 



Pistillate flowers not seen. 



"A large tree in mountain forest 5 miles southeast of Don 

 Amo, 2,500 feet altitude, March 7." (Herbert H. Smith, 

 Colombia, No. 2104.) 



Sparattanthelium sprucei. 



Coarsely hairy with rigid, divaricate, ferruginous hairs, 

 the branches stoutish, terete, the internodes about 2 cm. long. 

 Petioles about 12 mm. long, densely hairy, like the stem and 

 principal veins, subterete, the blades 8 to 12 cm. long, 2.5 to 

 3.5 cm. wide, oblong, with rounded base and abruptly acumin- 

 ate and acute summit, the acumination nearly a fifth of the 

 total length; entire, thin, drying brownish, sub-three-nerved, 

 the slender venation lightly and sharply prominent beneath, 

 the principal secondaries about 5 on each side, sub-erect, with 

 many very small obscure veins originating at right angles from 

 the midrib.' Compound corymbs in the upper axils, their 

 slender peduncles mostly shorter than their leaves, slenderly 

 branched, the flowers shortly and stoutly pedicelled or sub- 

 sessile, densely aggregated. Buds globose, or slightly prolate, 

 about I mm. long. Calyx-tube very short. Sepals 5, the 

 outer smaller, oval, obtuse, thickish; anthers 5, slightly unequal, 

 sub-sessile, oval. Pistil not seen. Fruit 15 mm. long, 7 mm. 

 thick, lanceolate, acuminate and acute, 6 or 7 sulcate, minutely 

 papillose. 



"Near Tarapoto, eastern Peru, 1855-6." (Spruce, No. 

 4222, a.) 



