PHAXEEOOAMIA. 441 



HoOKEE, J. D. — Introductory Essay to the Elora of Tasmania. 

 (German Trans., Ext. from Bot. Zeitsch.) Wien. 1861. pp. 39. 

 Also resume of above, Flora, 1861. 417-425. 



et T. Thomsok. — Praeeursores ad Eloram Indicam. Cruci- 



ferae. Linn. Proc. v. p. 128. "With a Clavis generum by Dr. 

 Hooker. 



The genera are grouped according to tlie arrangement to be 

 adopted by Mr. Bentham and Dr. Hooker in their forthcoming 

 ' Genera Plantarinn.' The new genera described are—Allocerathim, 

 foiinded.oiiChoris2)orastricta, DC; Atelanthera (Arabideae, Hk. f. ); 

 Loxostemon, founded upon a little plant near Cardamine, with the 

 longer stamens geniculately divaricate above (doubtfully included 

 in Arabideae) ; and Lepidostemon (Sisymbrieae), from an elevation 

 of 14,000 to 16,000 feet in the Sikkim Himalaya. 



HooKEE, J. D. — On the A^egetation of Clarence Peak, Fernando Po ; 

 with Descriptions of the Plants collected by Mr. Gustav Mami 

 on the higher parts of that Mountain. Linn. Journ. vi. 1. 



Dr. Hooker's notes refer chiefly to the temperate plants, 56 in 

 number, collected, ^vith one exception, at or above 5000 feet ele- 

 vation. Twenty additional species, ascending a little over this 

 height, belong to tropical types, and are excluded from the tem- 

 perate Flora. Of the 56 species, 32 are natives of Abyssinian 

 mountains, and 13 others are closely allied to plants of that 

 country. Of the total 76 Clarence Peak plants, 16 inhabit 

 Mauritius, Bourbon or Madagascar, 8 more being closely allied to 

 species from these islands. Only 12 of the 76 are known to be 

 South African, and of these all but Liizula have been also fomid 

 in Abyssinia. Peddiea is the only peculiarly South African genus, 

 and this is not temperate at Fernando Po. Dr. Hooker's com- 

 parisons establish (1) an intimate relationship between the Flora 

 of Clarence Peak and that of Abyssinia ; (2) a curious relation- 

 ship with the East African Islands ; and (3) its almost total dis- 

 similarity from the Cape Flora. The species are enimierated and 

 the new ones described. 



■ On the Distribution of Arctic Plants. Linn. Trans, xxiii. 251. 



With a North-circum-polar Map illustrating the Regions of Vege- 

 tation. Vide Nat. Hist. Eev. vol. i. Bibliog. p. 101. 



On Three Oaks of Palestine. Linn. Trans, xxiii. 381. 



Quercus pseud o-coccif era, Desf. (a portrait of an example of 

 which, ' Abraham's Oak,' at Mamre, is given), Q. cegilops, and 

 Q. infectoria. Their synonymy and distribution is given. Q. 

 pseudo-coccifera is the most abundant tree throughput Syria, 

 covering the rocky hills with a dense brush-wood. Q. infectoria 

 was met with on the eastern slopes of Lebanon, to the south of 

 Safed, and on the summit of Carmel. It is rendered conspicuous 

 by an abundance of red-brown, shining galls. Q. (sgilops, the 

 Vallonea Oak, is gregarious in Syria, though never forming a 

 brush-wood. It rises to the height oi 20 to 30 feet. Two plates 



