154 DR. F; WELWITSCH ON THE VEGETATION 
abounds, consisting chiefly of Leguminose ; Ficus ; three species of 
Nathusia ; Apocynee, forming trees with large blossoms ; Mimosee, 
sometimes as trees, sometimes as climbers; several Asiatic Rubi- 
асев in the form of trees (e.g. Hymenodictyon, Wallich) ; and a 
stately new Monodora (.M. angolensis, mihi). At the foot of the 
rocks, and along the many little brooks, grow seven species of 
Ophioglossum, three Schizee, and many Ferns, partly gold-dusted, 
and a magnificent tree-fern. Under these woody ferns (Cyathea, 
spec.) are found four or five Umbellifere and several curious 
Rubiacee. On the almost naked rocks grow fleshy Euphorbiacee ; 
about ten species of Commelynee, with the habits of Mesembry- 
anthemum, besides beautiful Portulacee, Tillee (), Cyperacea 
leucocephala ; and in the brooks themselves two species of Podo- 
stome@, together with pretty Batrachospermee and Zygnemata. 
In stagnant water appear Ottelia, Nymphea, and two Aponoge- 
tonee with blue blossoms, probably new genera. In wet meadows 
there occur six species of Utricularia, a Drosera, several Campa- 
nulacee (Lightfootia), an Isoëtes (terrestris), and a great number 
of small Serophulariacee and Leguminose, as well as a kind of 
Erigeron. But now, on the steep walls of the higher rocks, what 
sort of viscid shrubs with scaly stems and blue flowers do we 
perceive? Two species of Vellosiee ! which, in conjunction with 
several fruticose Orchids that grow even on the barest rocks, 
cover all the mountains of Pungo Andongo. However, the before- 
named plants are not the only American guests of this territory. 
As soon as one approaches the summits ( juga altiora rupium) of 
the rocky mountains, one finds the sides of the top overgrown 
with Heurnia and Sarcostemma (which announce the Cape of 
Good Hope), together with a Cactus, which is a RurPsALIs ; whilst 
on rough places there appear a Musa (scapo ventricoso! sæpius 
diametr. 5—6-ped.), a JDiplocliniwn (Begoniacee) and Erythro- 
aylum, spec. 
But notwithstanding these curiosities, so frequently paradoxical, 
the splendour and variety of the flora of Pungo Andongo is not 
nearly exhausted. About a hundred species of pretty Cyperacee 
(Cyperus, fifty spec.), and above a hundred Graminec, in con- 
nexion with very pretty Polygalacee and Ampelidea, adorn the 
lower plains; and whilst from the coast up to the boundary of 
this region I scarcely met with ten Liliacee, L was surprised to 
find around Pungo Andongo more than fifty species! Four spec. 
Hypoxis, above twenty-five Orchidee (among them a Disa!) and 
Commelynacee occur in such abundance, that the whole of large 
