194 Lichenes. — Bryophyten. 



Hasse, H. E., Additions to the liehen flora of southern 

 California, no. 5. (Bryologist. XIV. p. 2—4. January, 1911.) 



The following lichens are described as new: Biatorella terrena 

 Hasse, the type from "Squirrel Inn," north fork of the San Gabriel 

 Canyon, Los Angeles county, California; Acarospora peltata 

 Hasse, the type from near Adamana, Arizona; Calopluca verrucosa 

 Hasse, the type from near Adamana, Arizona. 



The following new "combinations" appear: Caloplaca erythrella 

 var. rubescens (Ach.) Hasse (Lecanora erythrella var. rubescens Ach.); 

 Placynthium nigrum subsp. psotinum (Cromb.) Hasse (Pannaria pso- 

 tina Ach.). Maxon. 



Chamberlain, E. B., A peculiar Hylocomium. (Bryologist. XIV. 

 p. 8—9. pl. 3. January, 1911.) 



The present notes concern plants collected at Nominique, 

 Quebec, August, 1907, by J. Bedard. "The plants are evidently 

 depauperate, having slender stems with few branches, which are 

 often much attenuated at the tip. In the red stems densely covered 

 with large branched paraphyllia and in the basal areolation of the 

 glossy leaves, the plant agrees well with Hylocomium pyrenaicum. 

 The leaves themselves are oblong-ovate, smooth, somewhat plicate 

 and revolute below, with only faint traces of a nerve in most cases. 

 The margin becomes more and more strongiy dentate toward the 

 Upper part, where, instead of the usual acumination. a fringe of 

 laciniate dentate processes gives the leaves a peculiarly blunt appea- 

 rance. Moreover, the leaves are often split above into 2 or 3 lobes 

 which are again fringed in the most diverse manner The pro- 

 cesses themselves are composed of 2 or 3 rows of linear cells and 

 are much branched and dentate." The peculiar strueture of these 

 processes and their possible funetion is further discussed at some 

 length. Maxon. 



Cooke, Jr. C. M, , The Hawaii an Hepaticae of the tribe Trigo- 

 nantheae. (Trans. Conn. Ac. Arts Sc. XII. p. 1 — 44. pl. 1 — 15. May, 



1907.) 



"The tribe Trigonantheae is represented in the Hawaiian Islands 

 by 25 species belonging to 6 of the 26 genera enumerated by Schiff- 

 ner and by a Single species of the genus Acromastigitm recently 

 proposed by Evans. None of the peculiar genera, such as Protoce- 

 phalosia, Pteropsiella , Mytilopsis, Arachniopsis, etc., found in tropical 

 America by Spruce, have representatives among the Hawaiian 

 members of this tribe. The genera represented are Lepidosia (3 spe- 

 cies), Acromastigitm (1 species), Bassania (10 species), Kantia (4 spe- 

 cies), Odontoschisma (3 species), and Cephalosia including Cephalosiella 



(5 species). Of the 26 species 7 are unpublished No species 



of Cephalosiella have before been reported from the Hawaiian Islands. 

 A large number of the Hawaiian Trigonantheae are related to North 

 American and West Indian species and apparently not so many to 

 East Indian, Asiatic, or South Pacflic species...." 



The new species described are as follows: Lepidosia Hawaica 

 Cooke, Bassania Nuuanuensis Cooke, B. inaequabilis Steph. (MS), 

 Cephalosia Baldwinii Cooke, C. Lilae Cooke, C. Kilohanensis Cooke, 

 and C. heteroica Cooke. 



One new combination appears: Bassania emarginata (Steph.) 



