MOUNT RORAIMA IN BRITISH GUIANA. 63 
ERIOPSIS SCHOMBURGKII, Reichb. f. in Bonplandia, iii. (1855), p. 67. 
Pseudoeriopsis Schomburgkii, Reichb. f. in Linnea, xxii. (1849), p. 853; R. Schomb. Reisen in Brit.- 
Guiana, iii. p. 1123. 
Roraima, upper slopes, McConnell & Quelch, 34. “ Flowers brown.” Schomburgk 
1679 «.—Also in the savannah of South Guiana. 
D 
HOULLETIA RORAIMENSIS, Rolfe, sp. n. Folia elliptico-lanceolata, magna. Scapus 
arcuatus, 7-9-florus. Bractez oblongæ, subobtusze, concave. Sepala orbiculari- 
elliptica, concava. Petala orbiculari-elliptica, plana. Labellum profunde trilobum ; 
lobi laterales late oblongi, truncati, oblique apiculatis; intermedius breviter 
unguiculatus, late trulliformis, apiculatus, eallo transverso submembranaceo ad basin 
unguem sito. Columna clavata. 
Leaf petiolate, elliptico-lanceolate, acute, 14 ft. long, 44 in. broad. Scape arching 
(base not seen); raceme 7-9-flowered. Bracts oblong, subobtuse, concave, 6-7 lin. long. 
Pedicels 1-1} in. long. Sepals orbicular-elliptical, concave, 9-11 lin. long, 7-9 lin. 
broad. Petals orbicular-elliptical, nearly flat, 9-10 lin. long, 7-8 lin. broad. Lip deeply 
3-lobed; side lobes broadly oblong, nearly truncate and obliquely apiculate, 6 lin. long, 
31 lin. broad, connected at the base by a suberect, transverse, stout, undulate membrane, 
and with a somewhat similar connecting callus at the junction of the front lobe, but 
more distinctly toothed; front lobe shortly and broadly unguiculate, broadly trulliform, 
abruptly apiculate, and with subacute lateral angles, 5 lin. long by nearly as broad. 
Column clavate, curved, 5 lin. long. 
Roraima, upper slopes, McConnell A Quelch, 29.—Endemic. 
A very distinct species, nearest H. Lowiana, Reichb. f., in structure, but very different 
in the broad nearly truncate side lobes of the lip, and more like H. Brocklehurstiana, 
Lindl., in habit. 
CATASETUM DISCOLOR, Lindl. Bot. Reg. (1844), Misc. p. 34. 
Roraima, upper slopes, McConnell & Quelch, 6.—Also found in Guiana, Brazil, and 
Paraguay. 
MaxiLLARIA CoxxELLII, Rolfe, sp. n. Folia oblongo-lanceolata, acuta, basi in petiolum 
attenuata.  Scapus foliis brevior, vaginis ovato-lanceolatis aeutis subimbricatis 
obtectus. Bractea oblongo-lanceolata, acuta. Sepala subobtusa et minute apiculata ; 
sepalum lateralia triangulari-oblonga ; posticum oblongo-lanceolatum. ^ Petala 
oblongo-lanceolata, subacuta. — Labellum elliptico-oblongum, obtusum, subundu- 
latum, apice recurvum, callo oblongo apice dilatato truncato. Columna brevis 
Leaves oblong-lanceolate, acute, attenuate at the base, 6-8 in. long, 9-12 lin. broad. 
Scape 31-4 in. long, covered with ovate-lanceolate acute sheaths, 6-9 lin. long and 
somewhat imbricate at the base.  Bract oblong-lanceolate, acute, 9-12 lin. long. 
Sepals subobtuse and minutely apiculate, dorsal oblong-lanceolate, 7-8 lin. long ; lateral 
triangular-oblong, 8-9 lin. long. Petals oblong-lanceolate, subaeute, 7-8 lin. long. 
Lip elliptical-oblong, obtuse, somewhat undulate, recurved at the apex, rather fleshy, 
