ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 59 



cell of the ventral scale except the oil-body cells. He provides a key 

 by which the five commonest Marchantiaceous hepatics can be distin- 

 guished from one another by characters of the ventral scales, namely, 

 by the appendages and the oil-bodies. 



Riella.* — L. Corbiere discusses the hepatics Riella gallica Trab. and 

 R. Battandieri Trab., and shows that the former is not dioicous as has 

 always been supposed, but is monoicous like the Algerian species R. Bat- 

 tandieri, and is but the French form of that species and must therefore 

 be reduced. The mistake arose owing to the fugacious character of the 

 antheridia which disappear after discharging their contents. 



British Hepatics.t — H. W. Lett has published a list, with descrip- 

 tive notes, of all the species of hepatics hitherto found in the British 

 islands. It is written in simplified English. Each species receives ten 

 to twenty lines of description with notes appended in small type. A 

 key to the genera is given at the beginning of the book, and keys to 

 the species are placed under the genera. The scheme of classification 

 of both the genera and the species is peculiar to the book. A biblio- 

 graphy and index are supplied. 



Hepatics of Baden. $ — K. Miiller publishes a list of his gatherings 

 of hepatics in Baden in 1901, mostly from the Feldberg neighbourhood. 

 He adds eight species and three varieties to the flora of Baden. Full 

 descriptions and critical notes are added where necessary. 



North American Hepatics. — A. W. Evans § describes and figures a 

 new species of hepatic, Diplophylleia apiculata, which is not uncommon 

 in the Eastern United States, and has long been known, but has been 

 confused with other species. The author shows that it differs from 

 D. obtusifolia and D. taxifolia in its inflorescence and its apiculate 

 leaves. 



W. C. Barbour || continues his monograph of the species of Radula 

 found in the United States, and gives an annotated list of nine species 

 and a key. 



A. W. Evans *fi publishes notes on fourteen hepatics which are addi- 

 tions to the flora of New England, and indeed several of them new to 

 the Eastern States. All but two of them occur in Europe. Incidentally 

 several confusions of synonymy are cleared up. 



« New Zealand Hepatics.** — E. S. Salmon describes and figures a 

 new species of hepatic — Isotachis Stephanii, discovered in New Zealand. 

 It is a robust species of a genus which is remarkable for the close re- 

 semblance of its amphigastria and leaves. The original description ff is 

 reproduced with additional notes by R. Brown, the collector of the plant. 



Interconversion of Sexual Organs in a Moss.JJ — E. de Bergevin 

 describes an anomaly that occurs in the inflorescence of a form of the 



* Revue Bryologique, xxix. (1902) pp. 109-14 (fig. in text). 



+ Aghaderg. Co. Down, 1902, 8vo, viii. and 199 pp. 



t Beih. z. Bot. CentralR, xiii. (1902) pp. 91-104. 



§ Bot. Gazette, xxxiv. (1902) pp. 372-5 (1 pi.). 



I! Bryologist, v. (1902} pp. 92-4. f Rhodora, iv. (1902) pp. 207-13. 



** Trans. Proc. N. Zeal. Inst., xxxiv. (1902) pp. 325-7 (1 pi.), 



tt Rev. Bryolog., xxviii. (1901) pp. 75-6. 



' Op. cit., xxix. (1902) pp. 115-9 (fig. in text). 



++ 

 ++ 



