MOUNT RORAIMA IN BRITISH GUIANA, 27 
MELASTOMACE.E, 
MICROLICIA BRYANTHOIDES, Oliver, in Trans. Linn. Soc. Ser. IT. Bot. ii. (1887), p. 274 
t. 39. f. B; Cogn. in DC. Monog. Phan. vii. p. 49. 
Summit of Mount Roraima, MeConnell & Quelch, 630.—Endemic. 
RHYNCHANTHERA GRANDIFLORA, DC. Prod. iii. p. 107. 
. Ireng Valley, McConnell & Quelch, 230. 
SIPHANTHERA MICROLICIOIDES, Cogn. in Mart. Fl. Bras. xiv. pt. 11. p. 199; and in DC. 
Monog. Phan. vii. p. 113. 
Meisneria cordifolia, Benth. in Hook. Journ. Bot. ii. (1840), p. 299; R. Schomb. Reisen in Brit.- 
Guiana, iii. p. 1101. 
M. microlicioides, Naud. in Ann. Sc. Nat. Sér. III. xii. (1849), p. 204; Oliver, in Trans, Linn. Soc. 
Ser. II. Bot. ii. (1887), p. 274. 
Upper slopes of Mount Roraima, McConnell & Quelch, S. Kotinga Valley, McConnell 
& Quelch, 182.—Apparently endemic in the Roraima region. 
DESMOSCELIS VILLOSA, Naud. in Ann. Sc. Nat. Sér. III. xiii. (1850), p. 30. 
Kotinga Valley, MeConnell & Quelch, 195. 
MACAIREA ASPERA, N. E. Brown, sp. n. (Plate 2.) Folia oblonga, obtusa, supra scaberrima, 
subtus appresse rufo-tomentosa. Calyx appresse pubescens et glandulosus. Petala 
obovato-oblonga, obtussisima, glanduloso-ciliata. Staminum filamenta superne 
glandulosa. Ovarium superne dense glandulosum, stylo parce glanduloso. 
A branching shrub; clothed on the young shoots, branches of the panicle, pedicels 
and calyx with rather long, rust-coloured, adpressed hairs. Leaves opposite; 
petiole 4-6 lin. long, pubescent like the stems; blade 1j1—3 in. long, 8-17 lin. broad, 
oblong, obtuse, or shortly and stoutly apiculate, cuneately rounded into the petiole 
at the base, coriaceous, 3-nerved, with the lateral nerves close to the revolute margin, 
scabrid with minute, conical, hair-tipped tubercles on the upper surface, tomentose 
beneath with a dense adpressed pubescence of rust-coloured hairs. Panicles 4-6 in. 
long, 2-31 in. broad, many-flowered. Pedicels 1-23 lin. long, minutely bibracteolate in 
the middle. Calyx with sessile glands mingled with the hairs outside ; tube campanulate, 
14 lin. long ; lobes 14 lin. long, deltoid, acuminate. Petals 3-4 lin. long, 23-3 lin. broad, 
oblong-ovate, very obtuse, minutely gland-ciliate, glabrous. Stamens glandular on the 
apical part of the filaments. Anthers with the connective dilated at the base into a 
cordate-orbicular shield. Ovary free, densely covered with glands on the upper part; 
style filiform, sparsely glandular. 
Upper slopes of Mount Roraima, MeConnell & Quelch, 31. 
Another specimen (no. 24, McConnell & Quelch), collected at the same place as no. 31, 
is identical with it in all particulars excepting the anthers, in which the portion of the 
connective between the pollen-cells and the dilated base is very much longer than in 31, 
E2 
