46 
date base and abruptly short-pointed apex, entire, coriaceous 
em very thick, above pale green, glabrous and slightly shining 
the veins inconspicuous, underneath softly puberulent wi 
the midrib and 18 to 20 pairs of primaries very prominent ; cyme 
r 
widely spreading and elongated; pedicels proper onl 
long, very stout, continuous with the calyx-tube which (in poas 
is 1 cm. long, infundibular, strongly 4-angled, the limb hemispheri- 
cal or cup-shaped, 6-8 mm. broad, coriaceous, reddish, the mar- 
gin sinuately lobed; corolla thick, purple, in bud ovoid with 
rounded short apiculate apex, the tube campanulate, about I cm. 
long, the lobes ovate, acute, 7 mm. long, 5 mm. broad; filaments 
inserted a little below the middle of the corolla, nearly 2 mm: 
broad at the base, the anthers oblong, 8 mm. long, 2 mm. broad, 
lightly exserted; style about equalling the filaments, very stout; 
fruit oblong, truncate. 
Between Guanai and Tipuani, Apr.-June, 1892 (1429). 
Chrysoxylon tubulosum (A. Rich.) Kuntze, Rev. Gen. Pl. 278 (J/a- 
crocuemum tubulosum A. Rich. in DC. Prod. 4: 403 = Pogon- 
opus tubulosus Schum. in Mart. Fl. Bras. 6: Part 6, 265). Be- 
tween Guanai and Tipuani, Apr.-June, 1892 (1344) Dec. 1892 
1716) — Rusby's 2090. 
Sipanea pratensis Aubl. Pl. Guian. 1: 147. Mapiri, July-Aug., 
1892 (1488) — Rusby's 2461. 
IsERTIA RETICULATA Britton, sp. n. 
Arborescent; densely and rather harshly short- tomentose 
thrash oat branchlets very stout, obtusely quadrangular ; stipules 
I.5 cm. long, ovate, acuminate and very acute, entire, obtusel 
keeled; petioles 2.5—4 cm. long, very stout, semi-cylindrical to 
nearly cipi the upper surface nearly plane; blades 2-4 
long, 1 to nearly 2 dm. broad, obovate, the base acute to 
cuneate, apex acutely very short-pointed ; entire, revolute, thick 
and rigid, very Bay bullate, above dark green, underneath white, 
the 20 to 25 or 30 pairs of primaries impressed- above, very 
prominent beneath, nearly divaricate, g almost at 
the margin; pedu uncle and rhachis exceedingly stout, 2 or 3 dm. 
long, the bracts and bractlets similar to the stipules and smaller ; 
calyx turbinate, about 8 mm. long, the teeth very short; corolla 
thick and rigid, 4 cm. long, the tube infundibular, the mouth 1.5 
broad, the rounded lobes about 7 mm. long, darker than the 
tube; anthers 7 mm. long, vemos se the ‘middle of the corolla- 
lobes; style sighüy- exceeding the 
Between Guanai and Tipuani, Ka a 1892 (1358)—Rus- 
by's 1895. 
