_Forsk._, Nat. Ord. Celastraceae, is figured in Dr. Lindley's Vegetable
Kingdom, p. 588. (London, 1846). But there is a still more complete
representation of the plant under the name of Catha Forskalii _Richard_,
in a work published under the auspices of the French government, entitled,
'Voyage en Abyssinie execute pendant les annees 1839-43, par une
commission scientifique composee de MM. Theophile Lefebvre, Lieut. du
Vaisseau, A. Petit et Martin-Dillon, docteurs medecins, naturalistes du
Museum, Vignaud dessinateur.' The botanical portion of this work, by M.
Achille Richard, is regarded either as a distinct publication under the
title of Tentamen Florae Abyssinicae, or as a part of the Voyage en
Abyssinie. M. Richard enters into some of the particulars relative to the
synonyms of the plant, from which it appears that Vahl referred Forskal's
genus Catha to the Linnaean genus Celastrus, changing the name of Catha
edulis to Celastrus edulis. Hochstetter applied the name of Celastrus
edulis to an Abyssinian species (Celastrus obscurus _Richard_), which he
imagined identical with Forskal's Catha edulis, while of the real Catha
edulis _Forsk._, he formed a new genus and species, under the name of
Trigonotheca serrata _Hochs_. Nat. Ord. Hippocrateaceae. I quote the
following references from the Tentamen Florae Abyssinicae, vol. i. p. 134.:
'Catha Forskalii _Nob._ Catha No. 4. Forsk. loc. cit, (Flor. AEgypt. Arab.
p. 63.) Trigonotheca serrata _Hochs._ in pl. Schimp. Abyss. sect. ii, No.
649. Celastrus edulis _Vahl, Ecl._ 1. 21.' Although In the Flora
AEgyptiaco-Arabica of Forskal no specific name is applied to the Catha at
p. 63, it is enumerated as Catha edulis at p. 107. The reference to
Celastrus edulis is not contained in the Eclogae Americanae of Vahl, but in
the author's Symbolae Botanicae (Hanulae, 1790, fol.) pars i. p. 21. (Daniel
Hanbury signed.)]

[19] This is probably the "River of Zayla," alluded to by Ibn Said and
others. Like all similar features in the low country, it is a mere surface