332 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Lophocolea minor Not a Good Species.* — I. Douin has made a 

 prolonged and detailed study of Lophocolea minor and L. heterophylla. 

 As to the differences that distinguish the two plants, he has extracted 

 the views of all the authors who have described both the species, and 

 has reduced them into two parallel columns. He then proceeds to 

 discuss in detail the distinctive characters indicated by these authors, 

 which indeed are sometimes contradictory. The conclusion to which he 

 comes is that L. minor is not a good species, but is the young form of 

 L. heterophyUa arrested in its development and almost always having its 

 leaves eroded and deformed by propagules, in consequence of such un- 

 favourable conditions as calcareous soil, drought, etc. ; also that accord- 

 ing to external conditions of drought and prolonged humidity the same 

 plant may, as it grows, pass from the state of L. minor to that of 

 L. heterophyUa, and vice versa. The author gives a careful description 

 of L. heterophyUa, and to its var. minor he relegates L. minor Nees. 



Ricciella Huebneriana.t — V. Torka gives some notes on the biology 

 of Ricciella Huebneriana. Cultures show that it cannot survive the 

 winter in a floating state, but must be submerged. In the spring it 

 breaks loose, rises to the surface, and, reaching the edge of the swamp, 

 can strike root and produce new plantlets. 



Various Notes on Hepaticse.J — V. Schiffner publishes a further 

 series of bryological notes. His Cep)halozielJa Baumyartneri, published 

 last year as a native of Dalmatia and the south of France, is found to 

 have a wider distribution, having been gathered in Crete by W. E. 

 Nicholson, and in Sussex by the same collector. This is another 

 instance of the occurrence of calcicolous Mediterranean plants in the 

 south of England. It has also been found near Verona ; and from 

 near Florence Cephalozia patula has been described, which is a shade- 

 form of the same species. In another note Schiffner records new 

 stations for sis exotic Hepaticse, interesting from the point of view of 

 distribution. Further notes treat of the occurrence of Scapania ohliqua 

 in Norway, and of the discovery in Saxony of the Scandinavian Lophozia 

 grancUretis. 



Calypogeia and its Type-species.§ — A. W. Evans discusses the 

 question of the priority of the generic name Calypoyeia over Kantia and 

 Cincinmilus. Raddi's Calypogeia, published in 1818, contained two 

 sections : A, two species without underleaves, C. ericetorum and C. 

 Jlagellifera ; B, one species with underleaves, C. fissa. Ignorant of this 

 and also of one another's work, S. F. Gray and Dumortier respectively 

 published Kantius (1821) and Cincinmilus (1822), each of which 

 corresponds with Raddi's section B. Synonymous with this is the 

 Calypoyeia Trichomanis of Corda (1829). In 1836 Nees von Esenbeck 

 retained Calypogeia for Raddi's section B., and proposed for section A 

 the name Gongylanthus. Lindberg, however, in 1875 restored Calypogeia 

 to section A, and adopted Kantia for section B. Since then there has 



* 



Rev. Bryolog., xxxiv. (1907) pp. 14-23. 

 t Helios., xxxiii. (Berlin, ]906) pp. 105-7 (3 figs). 

 I Oesterr. Bot. Zeitsch., Ivii. (1907) pp. 48-51, 89-91. 

 § Bryologist, x. (1907) pp. 24-30. • 



