ZOOLOGY AXD BOTANY, MICROSCOPY, ETC. 65 



the study of the innumerable tropical species which reveals the incon- 

 stancy of some of the formerly accepted generic characters. Christensen 

 is preparing a monograph of the genus, wherein he divides it into sub- 

 genera on a new plan. This new classification, as applied to the North 

 American species, yields the following sub-genera : — 1. Eudryopteris. 

 2. Group of D. opposita. 3. Group of D. patens. 4. Phegopteris. 

 5. Ctenitis. G. Goniopteris. 7. Meniscium. There are two other sub- 

 genera — Glapliyropteris and Steiropteris — found in tropical America ; 

 and some others, not named, occur in the Old World. 



Anemia.* — R. C. Benedict gives a description and figure of Anemia 

 nipeensis, a new species from Cuba. It resembles A. coriacea in its sterile 

 portion, and in other ways it approaches A. aurita and A. poHoricensis. 

 Twelve species of Anemia occur in Cuba. 



Antrophyum.| — R. C. Benedict describes and figures a new Antro- 

 phyum from Luzon, A. WilUamsi. It is one of the smallest species in 

 the genus, and resembles A. jjarvulum rather than A. nanum, which 

 latter occurs in the Philippines. 



Arctic Pteridophyta.J— C. Christensen discusses the distribution of 

 the Pteridophyta in the Arctic regions, and gives a list of all the species 

 hitherto recorded — namely, seventeen ferns and fifteen fern allies, with 

 their stations and latitudes. 



North American FernsJ — C. C. Kingman publishes notes on 

 Southern California ferns, collected mostly on the San Gabriel Mountains, 

 near Pasadena. 



F. T. Pember || gives an account of some fern-collecting in Florida. 



E. L. Leeir contributes notes on Aspleniiim Bradleyi and A. pinna- 

 tifidum, two Alabama ferns which disappeared during a destructive forest 

 fire in the spring of 1910. 



J. U. Smith ** writes of a collecting trip made with C. F. Austin on 

 the Caloosahatchie river, in Southern Florida, thirty-two years ago. 



P. Dowell ft writes on the study of ferns, with special reference to 

 field study, cultivation, laboratory cultures, hybridization, etc. He also 

 calls attention X\ to the work of a leaf-rolling insect, Pyrausta, the larva 

 of which rolls up and destroys the tips of the fronds of various species of 

 Dryopteris, etc. 



K. D. Spalding §§ contributes some simple notes on ferneries adapted 

 to different types of ferns. 



E. G. Britton || [j gives some notes on fern collecting in the Trinidad 

 mountains in Santa Clara, Cuba. 



* American Fern Journ., i. (1911) pp. 40^3 (1 pi.). 



t American Fern Jomn., i. (1911) pp. 71-4 (1 pi.). 



J American Fern Journ., i. (1911) pp. 65-70. 



§ American Fern Journ., i. (1911) pp 37-40. 



il American Fern Journ., i. (1911) pp. 45-8. 



^ American Fern Journ., i. (1911) pp. 49-51. 

 •* American Fern Journ., i. (1911) pp. 51-3. 

 ft American Fern Journ., i. (1911) pp. 53-8. 

 XI American Fern Journ., i. (1911) pp. 58-9. 

 §4 American Fern Journ., i. (1911) pp. 60-G3 (1 pi.). 

 II ;| American Fern Journ., i. (1911) pp. 75 7. 



Fp,h. 21st, 1912 F 



