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��OF CENTRAL AFRICA. 295

ohovafa, Avliicli, according to Dr. Oiulncy, grows wild in small qnantities in Wady Ghnn'bi.

PapilionaceyE. Twenty-six species of this tribe are contained in tlichcrbarinni, none of which form new genera, and the only two species that appear to be unpnblished belong to Indigofera.

Alhagi Mauronm, or Agoul, is abundant in Fezzan, where it forms excellent food for camels.

CoMPOSiT.E. Of this class, thirty-six species exist in the collection. The far greater part of these were found in the vicinity of Tripoli and in the Desert. All of them appear to belong to established genera, and very few species are iindescribed.

Rubiace-^. The herbarium contains only six species of this family, five of which, belonging to Spermacoce and c^sg Hedyotis, were found in Bornou and Soudan ; the sixth, a species of Galium, near Tripoli.

Of Asclepiade.e only three plants occur. One of these is a new species of Oxystclma, exactly resembling in its flowers O. esculentum of India, from which it difix.Ts in the form of its leaves, and in that of its fruit. ^ A species of Doemia was found in the Desert ; but the specimens are too imperfect to be ascertained.

Of AjoocinecB, strictly so-called, there is no plant whatever in the collection ; and of Gentianese, a single species only of Erythraea.

SesamEvE. An imperfect specimen of Sesaimm pfero- spcrminu, of the catalogue of ]\Ir. Salt's Abyssinian plants," is in the collection from Bornou.

SAPOTEiE. The only plant of this family in the herbarium is the Micadania, or Butter Tree of Soudan, particularly noticed by Captain Clapperton. The specimen, however, is very imperfect, consisting of detached leaves, an incom- plete fruit, and a single ripe seed. On comparing these leaves with the specimen of Park's Shea Tree," in the

' OxYSTELMA Bomoueuse, floribus racemosis, corollnc laciniis scmioTatis, folliculis inilatis, foliis lanccolatis basi cordatis.

Obs. Iiiflorcsccntia ct corolla omiiino 0. csculeiifi, a quo difTcrt folliculis in* flatis, et foliis omnibus basi cordatis.

^ Suit's Vo\/. to Abyss, append, p. Ixiii. {Ante, p. 91.)

^ Park's First Journey, pp. 202 and 35^.

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