MOUNT RORAIMA IN BRITISH GUIANA, 29 
but the free (not connate) bracts and bracteoles at once separate it from the section to 
which they belong. 
TIBOUCHINA LASIOPHYLLA, Cogn. in Mart. Fl. Bras. xiv. pt. ur. p. 297; and in DC. 
Monog. Phan. vii. p. 270. 
Pterolepis lasiophylla, Triana, in Trans. Linn. Soc. xxviii. (1871), p. 10; Oliver, in Trans. Linn. Soc. 
Ser. II. Bot. ii. (1887), p. 274. 
Kotinga Valley, WeConnell A Quelch, 183, 197. Ireng Valley, McConnell & Quelch, 
205. Slope of Mount Roraima, at 5400 ft. im Thurn, 59.—Only known from the 
above localities. 
TIBOUCHINA ASPERA, Aubl. Pl. Guian. i. p. 446, t. 177; R. Schomb. Reisen in Brit.- 
Guiana, iii. pp. 1100, 1191. 
Pleroma tibouchinum, Triana, in Trans. Linn. Soc. xxviii. (1871), p. 45, t. 3; Oliver, in Trans. Linn, 
Soc. Ser. II. Bot. ii. (1887), p. 274. 
Ireng Valley, MeConnell & Quelch, 217.—Widely spread in Tropical South America, 
extending westward to Colombia and Peru. 
MARCETIA TAXIFOLIA, DC. Prod. iii. p. 124; R. Schomb. Reisen in Brit.-Guiana, ii. 
p. 216, and iii. p. 1100 ; Oliver, in Trans. Linn. Soc. Ser. II. Bot. ii. (1887), p. 273. 
Upper slopes of Mount Roraima, McConnell A: Quelch, 13, 20; im Thurn, 68; 
Appun, 1114, 1153. Kotinga Valley near Roraima, JeConnell & Quelch, 149. 
With the exception of the above localities, this species is only known from Brazil, 
where it is a common and widely spread plant. 
MARCETIA JUNIPERINA, DC. Prod. iii. p. 125; Oliver, in Trans. Linn. Soc. Ser. II. Bot. 
ii. (1887), p. 274. 
Summit of Mount Roraima, WeConnell A: Quelch, 86, 644.—Also in Venezuela at 
Cumana and Merida. 
CILETOLEPIS ANISANDRA, Naud. in Ann. Sc. Nat. Sér. III. xiv. (1850), p. 140; Cogn. in 
DC. Monog. Phan. vii. p. 171. 
On the face of the cliff of Mount Roraima, at 7000-8000 ft., McConnell & Quelch, 
22.—Endemic. 
Monocuztum BowprLANDIL, Naud. in Ann. Sei. Nat. Sér. III. xiv. (1850), p. 51; 
Oliver, in Trans. Linn. Soc. Ser. II. Bot. ii. (1887), p. 274; Cogn. in DC. Monog. 
Phan. vii. p. 393. 
Kotinga Valley, MeConnell & Quelch, 189.—Also in Venezuela, Colombia, Ecuador, 
and Peru. 
MIcONIA HOLOSERICEA, DC. Prod. iii. p. 181. 
M. albicans, Steud. Nom. ed. 2, ii. p. 139. 
Upper slopes of Mount Roraima, McConnell $ Quelch, 28.—Throughout Tropical 
America from Mexico to Paraguay. 
