Bryophyten. — Pteridophyten 93 



Philonotis nanothccto'idea Par. et ßroth. sp. nov. Der Ph. nano- 

 thecia C. M. nächst verwandt. 



Brachymcninm (Leptostomiopsis) Djolibae Broth. et Par. sp. nov. 

 Baumrinde bewohnend, gesellig mit Erpodium Pobeguini. 



Bryum (Apalodictyon) afro-pluniosum Broth. et Par. sp. nov. Mit 

 B. plumosum Dzy. et Mk. zu vergleichen. 



Bryum (Trichophora) Nigerianum Broth. et Par. sp. nov. Dem 

 B. capillare L. sehr nahe stehend. 



Bryum (Trichophora) Pobeguini Broth. et Par. sp. nov. An die 

 vorige Art sich anschliessend. 



Pterogoniella Guineensis Broth. et Par. sp. nov. Mit noch sehr 

 jugendlichen Sporogonen gesammelt. 



Fabronia Pobeguini Par. et Broth. sp. nov. Der F. Cameruniae C. 

 Müll, nächst verwandt. 



Stereophyllum tenuinerve Broth. et Par. sp. nov. Eine elegante, 

 sehr kleine Art, dem St. nitens Mitt. nahe stehend. 



Trichosteleum Pobeguini Par. et Broth. sp. nov. Sporogone noch zu 

 jung, Baumstämme bei Banka bewohnend. 



Taxithelium Guincense Broth. et Par. Eine nur steril bekannte, die 

 Felsen der Wasserfälle von Kouroussa bewohnende Art. 



Geheeb (Freiburg i. Br.). 



GROUT, A. J., [Editor 's] Note. (The Bryologist. Vol. VII. 

 March, 1904. p. 31.) 



The generic name Burnettia Grout was originally proposed as a 

 Substitute ior the untenable name Homalothecium and was intended to 

 include all the species of the genus. The author regards the sectional 

 name Homalotheciella Card, as unavailable for this purpose. 



New names : Burnettia sericea (L.) Grout, B. Philippeana (Spruce) 

 Grout. Maxon. 



Towle, Phoebe M. and Anna E. Gilbert, The Fruiting 



Season of the Hair-cap Moss. (The Bryologist. 



Vol. VII. Maren, 1904. p. 35—36.) 



Notes on the length of time required for the mature development 

 of sporophytes of Polytrlchum commune and P. junlperlnum. Observations 

 made upon these two species in Vermont indicate that 

 „the escape of the sperm cells and the maturing of the archegonium for 

 their reeeption oecurs in April, and that the maturing of the spores 

 within the sporophyte takes place one year from the following August". 

 These results aecord with those recently announced by A. Grimme for 

 the same species in Europe. Maxon. 



Trelease, William, Alaskan Species of Sphagnum. (Harri- 



man Alaska Expedition. V. Cryptogamic Botany. March 26, 



1904. p. 329—337.) 



A list of the Sphagna of Alaska, based upon material collected 

 mainly by members of the Harri man Alaska Expedition, and 

 determined by Dr. C. Warnstorf. Twenty-two species and 19 varieties 

 are listed, including two (S. baltlcum and 5. angstroemll) here first re- 

 ported from America. Maxon. 



Clute, Willard N., The Measurement of Variation in 

 Equisetum. (The Fern Bulletin. Vol. XII. January, 1904. 

 [March.j p. 15—18.) 



A comparative study of series plants from Louisiana usually 

 called E. robustum and of material collected at two stations in Illinois 



