Anubias] XX. AROIDER. 89 
GoLtunco ALto.—A stiff terrestrial herb, with creeping rhizome 
ultimately becoming almost woody. Leaves very polymorphic. Shady 
rocky places in primeval woods ata place called Fonte de Quibolo. 
March and April 1856. Nos. 237, 238. 
CazENGO.—A small subcaulescent plant with thick almost woody 
rhizome, caudex very short, marked with semicircular leaf-scars, and 
bearing at the top 4 to 6 leaves, which are long-stalked, ovate-lanceo- 
late, more rarely slightly cordate at the base, hard and leathery, 
shining above, paler beneath, penninerved, the long-sheathed petiole 
swollen and bent a little below the blade. Scape lateral, arcuately 
ascending ; spathe convolute below gaping a little at the apex, fleshy, 
brittle, rather hard, green. Spadix ovate-cylindrical, bearing from 
base to middle the slightly separated green ovate ovaries crowned with 
a peltate discoid stigma, and from the middle to the obtuse apex the 
anthers ; sterile flowers absent. Anthers about 8 to 10, vertical, with 
a thick, peltately truncate connective, unilocular (?) dehiscing length- 
wise. Connectives very closely crowded, whitish, anthers snow-white 
adnate to the connective in a whorl. Very shady primitive woods 
by streamlets in the mountains called Muxailo, plentiful, but not 
often flowering. In fl. beginning of Jan. 1855. No. 236. A unique 
specimen. 
Some confusion has arisen in regard to the numbers 236 to 238. 
Welwitsch, who submitted his material to Schott, names all three 
A, Afzelii Schott. Engler in DC. Mon. Phan., /.c., founded a new species, 
A. heterophylla, on “ Welwitsch No. 236 to 238” from Golungo Alto. 
Subsequently in Bot. Jahrb., J.c., he quotes for A. Afzelii Angola 
Weiwitsch No. 237 in herb. Schweinfurth, No. 238 in herb. De Candolle, 
and for A. heterophylla Angola, Golungo Alto, Welwitsch No. 236. 
Engler accordingly recognises two species in Angola, A. Afzelii Nos. 237, 
238, and A. heterophylla No. 236. There is no evidence that he saw 
the true Welwitsch No, 236, as Mr. Hiern informs me that no dupli- 
cates were distributed. The specimens of 237 and 238 in the British 
Museum were all collected in the same locality and at the same time 
in Golungo Alto, and are obviously the same, and conform to Engler’s 
description of A. heterophylla. They are both in fruit, and may be 
distinguished from A. Afzelii by the shorter peduncle, which is about 
equal in length to the leaf-stalk. 
2. A. Afzelii Schott in Osterr. Bot. Wochenbl. vii. p. 399 ; Engl. 
Aracese No. 121, Bot. Jahrb., /.c.; Durand & Schinz, lc, 1857. 
“ ANGOLA.— Welwitsch No. 237 in herb. Schweinfurth, No. 238 in 
herb. De Candolle.” Engl. Bot. Jahrb., /.c. 
I have not seen these specimens, and include the species with some 
doubt. 
8. CALADIUM Vent. ; Benth. & Hook. f. Gen. Pl. iii. p. 976. 
1. C. bicolor Vent. Descript. Pl. Cels. t. 30 (1800); Engl. in 
DC. Mon. Phan. ii. p. 457. 
PRINCE’s ISLAND.—Plentiful in damp shady places at the foot of the 
mountain (Pico de Papagaio). In fi. Sept. 1853. No. 222. This 
pretty little Aroid is very common in the damp forests, and occurs up 
to 2000 ft. on the Pico de Papagaio. Itmay, however, have been intro- 
duced from Brazil with trees, many of which, ¢.g. Persea gratissima, 
Pitangueira (Eugenia uniflora), etc., were in very early times transplanted 
from Brazil to St. Thomas and Prince’s Island and have succeeded well. 
IsLaAND oF St. THomas.—Sept. 1860. No. 6769. 
