ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 603 



American Forms of Lycopodium complanatum.* — C. A. Weatherby 

 discusses the American forms of Lycopodium complanatum. The species 

 occurs in the Western Hemisphere in two distinct areas. One area 

 extends from North Carolina to Alaska ; the other from South Mexico 

 to Bolivia and South Brazil. There are two northern and two southern 

 varieties ; but there is nothing to warrant specific segregation. 

 Weatherby gives a synopsis of the varieties, and arranges them as 

 follows : the type (North America, Alaska to Maine, Europe, Asia) ; 

 var. validum (Mexico) a new variety ; var. tropicum (South America) 

 syn. L. thyoides Humb. et Bonpl. ; var. Jiabelliforme (Nova Scotia to 

 North Carolina ; var. Wibbei (New England). 



New Tropical Ferns. t — E. Rosenstock publishes diagnoses of some 

 new species of ferns, two from Kaiser Wilhelms Land, in New Guinea, 

 collected by (1. Bander ; two from East Java, collected by Mousset ; and 

 three from South Brazil, collected by Schmalz and by Wacket. 



Ferns of Argentina. :{: — C. M. Hicken publishes descriptions of some 

 new Argentine ferns, representing two species and two varieties. 



Ferns of Venezuela.§— J. R. Johnston gives a list, revised by W. R. 

 Maxon, of the Pteridophytes of the Venezuelan island of Margarita. It 

 comprises fifty-five ferns and two species of Lycopodium, with the 

 synonymy and geographical distribution appended. 



Ferns of South China. — H. Christ || publishes a fourth list of ferns 

 collected in Kouy-Tcheou, by J. Cavalerie, partly from the environs of 

 Pin-fa (including Pteris insignis, Trichomanes Fargesii, and two novelties, 

 Cyrtomkim Hemio/iitis and Platjiotjyria argutissima) and partly from the 

 new station Lofou, a set of tropical, Malay character, comprising twenty- 

 eight species. Eight new diagnoses and a figure of Cyrtomium Hemio- 

 nitis are given. 



He also % gives descriptions of four new ferns collected by Bon in 

 Tonkin, and defines Subconjunctse, a new subsection of the Nephr odium 

 section of Dryopteris, illustrating the venation with a figure. 



Bryophyta. 

 (By A. Gepp.) 



Sexuality in the Mosses.** — J. Cardot gives a resume of the later 

 studies of El. and Em. Marchal on sexuality in the mosses. In their 

 previous publication they had shown that in the case of dioicous mosses 

 regeneration of the sporophyte produces sexiferous plants which present, 

 at least virtually, a hermaphrodite character, and which are capable of 



* Proc. Amer. Acad., xlv. (1910) pp. 412-15. 

 t Fedde's Repertorium, viii. (1910) pp. 163-4, 277-9. 



X Trab. Mus. Farmac. Buenos Aires, No. 19 (1907). See also Fedde's Reper- 

 torium, viii. (1910) pp. 275-6. 



§ Proc. Boston Soc. Nat. Hist., xxxiv. (1909) pp. 177-86. 

 I) Bull. Acad. Internat. Geogr. Bot., xix. (1910) pp. 137-43. 

 «jf Not. Systemat. Herb. Mus. Paris, i. (1910) pp. 185-8 (fig.). 

 ** Rev. Bryolog., xxxvii. (1910) pp. 87-9. 



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