Dissotis| LIV, MELASTOMACE. 367 
D. rotundifolia Triana in Trans. Linn. Soc. xxviii. p. 58 (Dec. 
1871); Cogniaux in DC. Monogr. Phan. vii. p. 369 (1891). 
Gotunco ALTo,—A little low undershrub, growing after the fashion 
of Linnea borealis L.; stems prostrate or creeping, rooting at the 
nodes, very slender; flowering branches erect ; flowers of a pretty 
rose colour, large for the size of the plant; anthers of a deep dull 
yellow-orange colour. In the most elevated forests of Sobato 
Quilombo-Quiacatubia, creeping amongst moss in shaded places ; fl. 
and young fr. Feb. 1855. A slender form. No. 897. 
Seen also by Welwitsch in Princz’s Isuanp, at Papagaios, Sept. 
1853, but there is not any specimen in the collection. 
7. D. angolensis Cogn, in DC. Monogr. Phan. vii. p. 371 (1891). 
Houiiita.—In marshy, bushy pastures, by the streams of Ferrio da 
Sola ; fl. beginning of May 1860. No. 913. An erect perennial 
tomentellous herb, 2 to 3 ft. high; flowers bright rose-purple and 
sometimes pale violet-purple. In swampy meadows with dense grass 
and low bushes, at the great lake of Ivantdla; fl. and fr, Feb. and 
April 1860. No. 914. 
8. D. Welwitschii Cogn. in DC. Monogr. Phan. vii. p. 371 (1891). 
Huitita.—Flowers brilliantly violet-purple. On elevated, wooded, 
densely grassy declivities, along streams in Morro de Lopollo, abundant ; 
fl. Jan., young fr. April 1860. No. 917. An undershrub, 3 to 4 rarely 
5 ft. high ; stems gregarious, erect, winged-tetragonal ; leaves ovate- 
lanceolate, very bright green ; flowers paniculate, large, very handsome, 
deep violet-purple. By streams in Serra de Lopollo, at an elevation 
of 5200 feet ; fr. April 1860. Co. Carp. 89 and 575, 
9. D. longicaudata Cogn. in DC. Monogr, Phan. vii. p. 373 (1891). 
Houitta.—A small slender tree, 15 to 20 ft. high; leaves with 
scattered adpressed hairs on the upper face ; calyx-teeth caducous. 
In wooded thickets along streams in the most elevated parts of Morro, 
(Serra) de Lopollo ; fl. and young fr. May 1860. No. 915. Arbores- 
cent 10 to 15 ft.; trunk 2 to 6 in. in circumference ; fr. COLL. Carp. 571. 
The following probably belongs to this species, though the cor- 
responding specimens have not been found :—— 
" Hurtia.—A shrub of 14 to 18 ft. or a slender little tree, evergreen, 
with very handsome violet-purple flowers. In Morro de Huilla, at 
5600 ft. alt., May 1860. Cox. Carp. 73. 
10. D. Candolleana Cogn. in DC. Monogr. Phan. vii. p. 373(1891). 
Punco ANDONGO.—In damp meadows between Quitage and Condo, 
occasionally ; fl. and \fr. March 1857. No. 904. A small, erect, 
branched shrub, 3 to 4 ft. high. By the streams of Funda Quilombo ; 
fr. Dec. 1856. No. 904d. In marshy thickets by the river Muxillo ; 
fl. and fr. beginning of Dec. 1856. No. 904c. An erect shrub, 
3 ft. high ; flowers not yet seen. In the elevated marshy parts of 
the rocks of Pungo Andongo ; fr. end of Oct 1855. Cony. Carp. 573. 
11. D. erenulata Cogn. in DC. Monogr. Phan. vii. p. 376 (1891). 
Hvitia.—An erect shrub, very much branched, 4 to 6 ft. high; 
primary stems springing in a ceespitose manner from the rootstock : 
branches and branchlets spreading. In damp thickets at the base of 
Morro de Lopollo, not abundant ; fr. Dec. 1859; very few fl., May 
