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161 
OUTLINES OF PERIODICAL LITERATURE, 
RELATING TO THE NATURAL SCIENCES AND PHILOSOPHY. 
(Continued from Vol. viii. p. 349, of this Journal ). 
Annals of Natural History ; or Magazine of Zoology, Botany, and Geology ; 
conducted by Sir W. Jardine, Bart. P. J.Selby, Esq. Dr. Johnston, Sir 
W. J- Hooker, and Richard Taylor, F.L.S. 8vo, London, 1838, with 
graphic illustrations. 
V.—First in this number, stands an article of Professor Henslow’s, inti- 
tuled Florula Keelingensis, or an account of the native plants of the Keeling 
Islands. In this list the natural system of arrangement is preferred, and 
twenty-one species of vegetables are succinctly described. These are, Pari- 
tium filiaceum, Triumfetta procumbens, Pemphis acidula, Portulaca oleracea, 
Guilandina bonduc, Acacia farnesiana, Urera guadichandiana, Achyranthes 
argentea, Boerhavia diffusa, Sceevola Kenigii, Guettarda speciosa, Cordia ori- 
entalis, Tournefortia argentea, Dicliptera buarmani, Ochrosia parviflora, Pa- 
nicum sanguinale, Stenotraphum /epturoide, Lepturus repens, Cocos nucifera, 
Hypnum rufescens, and Polyporus Jucidus, forming altogether an interesting 
set of plants, whose seeds must be provided, in a very eminent degree, with 
the means of resisting the influence of sea-water. 2. Fishes new to Ireland, 
to the number of six, are zoologically delineated by Mr. Thompson : these 
are, Trigla blochii, the red gurnard; Mugil chelo, the thick-lipped gray mul- 
let ; Gobius gracilis, the slender goby ; Salmo erioz, the bull-trout ; Gadus 
callarias, the dorse ; and G. minutus, the poor. As an ichthyological com- 
munication, this of Mr. T.’s is important and acceptable. 3. Dr. Walker 
Arnott considers the Linnzan genus Rhizophora as a group of the order 
Rhizophoree ; and, as such, he makes it the subject of a clear and ample 
definition. He then gives a synoptical view of the genera and species of 
the whole group, with their phytographical distinctions: thus, Rhizophora 
mangle, R. mucronata, and R. conjugata ; Ceriops candolliana, & C. roxburghi- 
ana ; Kandelia rheedeii ; Bruguieria gymnorrhiza, B. cylindrica, B. rheedeii, B. 
australis, B. eriopetala, B. cariophylloides, B. malabarica, B. parviflora, and B. 
sexangula, Dr. Arnott subjoins an admirable Clavis Analytica of the better 
known species of this group of vegetables ; he then adds descriptive remarks 
on the Carallia ceylanica, C. corymbosa, C. sinensis, and C. integerrima ; and 
finally, for definite considerations, he proposes the establishment of a new 
genus, the Dryptopetalum coriaveum, which he characterizes. This valuable 
contribution evinces the doctor’s intimate acquaintance with the niceties of 
botanical literature and philosophy. 4 Mr. C. C. Babington produces far- 
ther reasons in support of his observations on the Habenaria difolia and H. 
chlorantha, originally published in the Linnzean Transactions; and he repeats 
their characteristic differences, for the sake of those botanists who do not see 
VOL. 1X., NO. XXV. 21 
