STANDLEY—STUDIES OF TROPICAL AMERICAN PHANEROGAMS. 429 
this and five other related genera of South American plants as a new 
tribe, the Hoppieae. On account of the lapse of the generic name 
Hoppea in the Cyperaceae, this was replaced by the same author with 
the tribal name Bisboeckelerieae ? 
The species, so far as known, are enumerated below. Two of them, 
B. bicolor and B, vinacea, are closely related to the type of the genus 
(Hoppia irrigua Nees), but the others diverge considerably in gen- 
eral appearance and may not be congeneric. 
Bisboeckelera angustifolia (Boeckel.) Kuntze, Rev. Gen. Pl. 2: 747. 1891. 
Hoppia angustifolia Boeckel. Flora 54: 37. 1871. 
TYPE LOCALITY: French Guiana. 
Bisboeckelera berroi (Clarke) Standley. 
Hoppia berroi Clarke, Kew Bull. Misc. Inf. add. ser. 8: 62. 1908. 
The type is from Paso de los Toros, Uruguay, collected by Berro (no. 2169). 
Bisboeckelera bicolor (Clarke) Standley. 
Hoppia bicolor Clarke, Kew Bull. Misc. Inf. add. ser. 8: 62. 1908. 
Collected by Riedel in Brazil, Minas Geraes, Una, near Ouro Preto. It is 
described as having the upper surface of the leaves of a copper-brown color 
and the lower surface glaucous. 
Bisboeckelera irrigua (Nees) Kuntze, Rev. Gen. Pl. 2: 747. 1891. 
Hoppia irrigua Nees in Mart. Fl. Bras. 2': 199. pl. 30. 1842. 
The type was collected “In lapidosis udis silvarum ad flumen Japuré prope 
Manacart et ad portum prov. fluminis Nigri.” 
Bisboeckelera longifolia (Rudge) Standley. 
Schoenus longifolius Rudge, Pl. Guian. 14. pl. 16. 1805. 
Hoppia microcephala Boeckel. Flora 54: 87. 1871. 
Bisboeckelera microcephala Kuntze, Rev. Gen. Pl. 2: 747. 1891. 
The type of this species was collected somewhere in the Guianas by an un- 
known collector. The type of Hoppia microcephala is from Surinam. 
Bisboeckelera vinacea Standley, sp. nov. PLATE 24. 
Perennial with many coarse purplish fibrous roots and numerous _hori- 
zontal rhizomes covered with overlapping purplish leaflike bracts; leaves all 
radical, 38 cm. long or less, the outermost shortest, about 2 cm. wide, acute, 
glaucous on the upper surface and glabrous or with a few scattered hairs, 
scabrous and glandular on the midvein, beneath of 1 deep purplish red, strongly 
nerved, glandular-puberulent, narrowed below but expanded into a broad and 
sheathing base, scaberulous on the margins, these inrolled in drying; culm 
naked, about 25 cm. long, triangular, brown, scaberulous on the angles; bracts 
of the inflorescence 2, similar to the leaves, the longer 50 mm. long, the other 
about 15 mm.; inflorescence of about 7 dense oblong sessile spikes 15 to 20 mm. 
long; glumes at the base of each spikelet 2, oblong-lanceolate, acute, purplish, 
puberulent; spikelets consisting each of 1 fertile and 2 sterile florets; mature 
perigynium 5 to 6 mm. long, ovoid, tapering into a long subulate beak, purplish 
red, faintly nerved, puberulent; achene 2 mm. long and of the same diameter, 
obtusely angled, dark brown, shining, smooth, contracted at the base into a 
short stipe, bearing on the apex a short beak about one-fourth the length of 
the body. 
1In Engl. & Prantl, Pflanzenfam. Nachtr. 47. 1897. 
