BOOK-NOTES, NEWS, ETC. 375 sp. n. — (July 18). Epidendrum xipheroides Kriinzl., Cyrtocliilum micrantlium KranzL, spp. nn. Journal de Botanique (June 1). — C. Sauvageau, Ectocarpus fulvescens. — (June 1, 16). A. Franchet, ' Les Aletris asiatiques.' —(June 16, July 1). P. Harlot, * Pilonema.'—l^. Drake del Castillo, Urticacees du Tonkin. — (July 1). H. de Boissieu, ' Contribution a la connaissance du littoral Saharien.' . Hue, ' Lichens de la Savoie' (Herb. J. J. Perret).' — (July 16). H. Lecomte, Thonningia sessilis, sp. n. (1 pi.). — L. Vidal, ' Sur les substances pectiques dans la racine des Equisetum .' Journ. Linn. Soc. (Bot. : no. 217 : July 8). — A. J. Ewart, ' On Assimilatory Inhibition in Plants.' Oesterr. Bot. Zeitschrift (July). — F. v. Mueller & E. Hackel, Schizoktachyum Copelandi, sp. n. — F. Matouschek, ' Zwei neue Peta- s/fes-Bastarde aus Bohmen' (1 pi.). — F. Arnold, ' Lichenologische Fragmente.' — P. Ascherson, Equisetum maximum. BOOK-NOTES, NEWS, dc. Dk. Gregory's account of his travels in East Tropical Africa forms a handsome book — The Great Rift Valley — and contains much information and many notes upon the botany of the region traversed by him. The appendix includes a list of the plants collected by him, so far as at present determined — for the most part by the officers of the Botanical Department of the British Museum ; the novelties, as our readers will remember, have been described in this Journal. The arrangement of the list is somewhat odd, the authority for each name being dissociated from it and placed in a column by itself ; thus, " Species. Ethulia conyzoides Author.' L. Locality. It may be well to call attention to the fact that the Cyperacem, elaborated by Mr. C. B. Clarke, do not appear among the mono- cotyledons, but form a ** part " by themselves, coming after the Fungi : the novelties, which appear as nomina nuda, were described by Mr. Clarke in this Journal for May last, too late to be included in the useful *' list of literature " relating to his expedition which Dr. Gregory gives in an appendix. An enumeration of the fresh- water Algae collected during the expedition, by Messrs. W. and G. S. West, will appear in an early number of this Journal. Dr. Gregory comments on the absence of scientific literature on British East Africa, and points out our inferiority to Germany in this respect. *' The only work on Tropical Africa in English that can compare with these [German works] in scientific accuracy is The Flora of Tropical Africa, the last part of which was published in 1877 ; but this barely mentions British East Africa." It is little to our credit that nearly twenty years should have elapsed without any attempt being made to complete this Flora; but, notwithstanding
