50 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Rippa, G. — Le Pteridofite raccolte da G. Zenker al Congo. (The Pteridophytes. 

 collected by G. Zenker on the Congo.) 



Bull. Orto Bot. Napoli, ii. (1904) pp. 109-14. 



Rudolph, K. — Psaronien nnd Marattiaceen, vergleichend anatomische Unter- 

 suchung. (Psaronieae and Marattiaceae, their comparative anatomy ; a re- 

 search.) 



[The fossil Psaronieae belong undoubtedly to the Marattiales, but also 

 approach Cyatheaceae, thus strengthening the view that the Lepto- 

 sporangiate Ferns originated from the Eusporangiate.] 



Denkschr. K. Akad. Wiss. Wien, lxxviii. (1905) pp. 165-201 (3 pis.). 



Rumpf, G. — Rhizodermis, Hypodermis, und Endodermis der Farnwurzel. (The 

 rhizodermis, hypodermis, and endodermis of Fern-rhizoids.) 



[Structure of these tissues compared with those of angiosperms.] 



Biblioth. Bot., heft 62 (1904) 48 pp., 4 pis. 



Schneider, G. — Choice Ferns for Amateurs, their Culture and Management in 

 the Open and under Glass. 



[Abridged from the " Book of Choice Ferns."] 



London : 8vo (1905) 338 pp., illustrated. 



Schumann, K., und Lauterbach, K. — Nachtrage zur Flora der Deutschen 

 Schutzgebiete in der Siidsee (mit Anschluss Samoas nnd der Karolinen). (Supple- 

 ment to the flora of the German Protectorate in the South Seas, excluding 

 Samoa and the Carolines.) 



[Contains 81 Pteridophyta, 9 of which are new, determined by Christ.] 



Leipzig : Borntrager, 1905, 68 pp. 



Scott, D. H. — On the Structure and Affinities of Fossil Plants. V. On a New 

 Type of Sphenophyllaceous Cone (Sphenophyllum fertile) from 

 the Lower Coal Measures. 



Phil. Trans, ser. B, No. 198 (1905) pp. 17-39 (3 pis.). 



,, ,, The Early History of Seed-bearing Plants, as recorded in the Car- 



boniferous Flora. 



[A summary of researches on Cycadofilices, etc.] 



Mem. Proc. Manchester Lit. Phil. Soc, 

 xlix. 3 (1905) 32 pp. 3 pis. 



,, ,, The Sporangia of Stanropteris Oldhamia Binney. 



New Phytologist, iv. (1905) pp. 114-20 (2 figs.). 



Seward, A. C. — Permo-carboniferons Plants from Kashmir. 



Mem. Geol. Surv. India, ii. 2 (1905)'pp. 1-14 (3 pis.). 



Shibata, K. — On the Chemotaxis of Spermatozoids of Salvinia. 



[Japanese.] Bot. Mag. Tokyo, xix. (1905) p. (51). 



,. ,, Stndien ueber Chemotaxis der Isoetes-Spermatozoiden. (Studies on 



the chemotaxis of the spermatozoids of Isoetes.) 

 [Effect of malic and other acids.] 



Pringsh. Jahrb. Wiss. Bot., xli. (1905) pp. 561-610. 



,, „ Studien iiber die Chemotaxis der Salvinia- Spermatozoiden. Vorlaufige 



Mitteilung. (Studies on the chemotaxis of the spermatozoids 

 of Salvinia. Preliminary communication.) 



Bot. Mag. Tokyo, xix. (1905) pp. 39-42. 



„ ,, Ueber die Chemotaxis der Spermatozoiden von Equisetnm. Vorlaufige 



Mitteilung. (On the chemotaxis of the spermatozoids of 

 Equisetum. Preliminary notice.) Tom. cit., pp. 79-82. 



Smith, B. — A Lepidodendroid Stem. Geol. Mag., ii. (1905) pp. 208-11. 



Smith, J. D. — Enumeratio Plantarum Guatemalensinm, necnon Salvadorensium, 

 Hondnrensinm, Nicaraguensium, Costaricensium. (Enumeration of plants of 

 Guatemala, also of Salvador, Honduras, Nicaragua, Costarica.) 



[Reprint of localised labels, including names of 91 Pteridophytes.] 



Oquawkae (HI.) : Patterson, 1905, vii. and 73 pp. 



