70 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Prantl's Die naturlichen Pflanzenfamilien. A description is given of 

 Pterygophyllum acuminatum Pur., an East Indian species now stated to 

 have Hookeria Sullivantii 0. Muell. as a synonym, having a distribution 

 from Ohio to Guadeloupe and in South America. 



A. Lorenz* publishes some further notes upon the bryophytes of 

 Waterville in the White Mountain territory of New Hampshire, an 

 incompletely explored region. 



C. H. Demetriof gives a list of 100 mosses collected in various parts 

 of Missouri. 



E. J. Window! describes the dehiscence of capsules and dispersal of 

 spores which he had the good fortune to observe in process of execution 

 in Sphagnum growing in a swamp in Vermont on a sunny morning in 

 August. 



w 



Mosses of Madeira.§ — A. Luisier publishes a note on some bryo- 

 logical additions to the flora of Madeira collected by C. A. de Menezes. 

 The two genera Cinclidotus and Brachymenium have never previously 

 been recorded for the Atlantic islands. Menezes has discovered 

 Cinclidotus fontinaloides var. madeirensis Card, and Brachymenium 

 pMlonotula Hpe., which latter, like Philonotis obtusata CM., is a 

 Madagascan species. Similarly in the Azores are found species whose 

 affinity is with those of the African islands. Menezes has also discovered 

 a new variety, Astrodontium TreUasei var. latifolium Card. 



Muscinese of the Canary Islands. || — Pitard, Corbiere and Negri 

 publish an account of the principal Canary Islands, a bibliographical 

 index and a catalogue of the Muscineaa with their stations, including 

 101 mosses, 20 of which are new to the flora, and 62 hepatics, 18 of 

 which are new records for the Canaries and 3 new to science. 



Arctic Muscineae.lf — N. Bryhn publishes an enumeration and 

 description of the bryophytes collected during the second Norwegian 

 Polar expedition. These include 57 hepatics and 233 mosses, several of 

 which are new and four are figured. 



A. Hesselbo ** publishes a list of the Andreaaales and Bryales found 

 in East Greenland, between 74° 15' and 65° 35' lat. N., in the years 

 1898-1902. They were collected during several expeditions by Kruuse 

 and Hartz, and amount to 132 species, several of them being new to the 

 local flora. 



Sphagna of Alaska.jf — W. A. Setchell gives a summary of the 

 cryptogamic work of the University of California Botanical Expedition 

 to Alaska in 1899, and adds a list of some previously unreported Alaskan 

 Sphagna, determined by C. Warnstorf, including 21 species and forms. 



* Bryologist, x. (1907) pp. 102-3. 



t Tom. cit., pp. 103-6. J Tom. cit., p. 111. 



§ Bull. Soc. Portugaise Sci. Nat. Lisbonne, i. (1907) p. 71. 



|i Mem. Soc. Bot. France, 1907, 44 pp. 



i Vidensk.-selsk. Kristiania, 1906, 260 pp. (1 pi.). 



** Meddelelser om Gronland, xxx. (1907) pp. 315-32. 



ft Univ. of California Publications, Botany, ii. (1907) pp. 309-15. 



