Physiologie. — Algae. 37 



des Schleimes für Sauerstoff beruhen. In der Ausbildung des 

 Schleimes ist insofern eine Anpassung an die Verbreitung durch 

 Vögel zu erkennen, als neben der unverdaulichen Pektoseschicht in 

 einem Falle ein Celluloseschleim, im andern Fetttröpfchen auftreten, 

 welche als Nahrung dienen können. K. Linsbauer (Wien). 



HowE, Marshall Avery, Phycological Studie s. II. NewC/z/oz-o- 

 phyceae, n e w Rliodophyceae, and miscellaneous notes. (Bul- 

 letin of theTorrey BotänicalClub. XXXII. November 1905. p. 563 

 —586. plates 23—29.) 



The following algae are described: Halimecla favulosa sp. 

 nov., Claclocephalus scopariiis gen. et sp. nov., Aurainvillea 

 levis sp. nov., all from the Bahamas; and Sarcomenia fila- 

 mentosa sp. nov., from Florida. Claclocephalus, which is of 

 the family Codiaceae, is most nearly related to Aurainvillea, Stan- 

 ding in some respects intermediate between Aurainvillea and Udotea. 

 All the new species are figured and their relationship is discussed 

 in detail. 



Notes on Caulerpa crassifolia (Ag.) J. Ag. The name Cau- 

 lerpa sertularioides (S. G. Gmel.) Howe is proposed, to displace 

 C. pluniaris (Forsk.) Ag. The rare Acetabulum Farlowii (Solms) Howe 

 (comb, nov.) is contrasted with Acetabulum crenulatum (Lamour.) 

 Kuntze, and from a study of material recently coUected in Florida, 

 is held to be specifically distinct, the original diagnosis being 

 amended in certain particulars. The genus Botryopliora J. Ag., 1887, 

 iounded upon Dasycladus occidentalis Harv., 1858, (Botryopliora occi- 

 dentalis [Harv.] J.' Ag., 1887), is identical with Batophora J. Ag., 

 1854, founded on the valid species Batophora Oerstedi J. Ag., 1854; 

 but Botryopliora occidentalis (Harv.) J. Ag. is not specifically distinct 

 and becomes Batophora Oerstedi occidentalis (Harv.) Howe (comb. 

 nov.). Notes on the size, distribution and habitat of the B ah am i an 

 Neomeris Cokeri Howe, 1904. Notes on the identity and synonomy 

 of Fiicus spiralis L., with reference to the Linnaean specimens. 

 Fiicus Poitei Lamour., commonly regarded as a Gracillaria, is de- 

 termined, from an examination of the original specimens in the her- 

 barium of Lamouroux, to be Laurencia tuberculosa J. Ag. 



Maxon. 



Schneider, Albert, Chroolepus aureus a liehen? (Bulletin of the 



Torrev Botanical Club. XXXII. p. 431—434. plate 22. August 



1905.) 



Chroolepus aureus {L.)Y.üiz., collected on Vancouver Island 



by the writer, was found to be closely invested by the finely reti- 



culate colorless hyphal tissue of a fungus. The association was 



thought to be symbiotic although the fungus was not observed to 



have developed spores nor any of the other special structures found 



with the fungal symbionts of the majority of lichens. Maxon. 



Setchell, William Albert, Gyninoi(ons^rus lorreyi (Ag.) J. Ag. (Rho- 

 dora. VII. p. 136—138. July 1905.) 



Notes on the alga originally described (1822) by C. Agardh 

 as Sphaerococcus Torreyi, later called Chonxlrus Torreyi by r e - 

 ville, and still later (1851) Gyninogongrus Torreyi by J. 0. Agardh. 



