102 MORPHOLOGY, ETC., OP BRYOPHYTES [Bot. Absts. 



698. Smith, Gilbert Morgan. A second list of algae found in Wisconsin lakes. Trans. 

 Wisconsin Acad. Sci. 19: 614-653. PI. 10-15. 1918.— The present paper is a continuation 

 of the author's studies on Wisconsin algae (see Smith, G. M. A preliminary list of algae 

 found in Wisconsin lakes. Trans. Wisconsin Acad. Sci. 18: 531-565. 1916) but is confined 

 almost exclusively to the plankton forms. — Planktosphaeria is proposed as a new genus in 

 the family Palmellaceae, with P. gelatinosa as the only species. — The following new species 

 are described: Asterococcus limneticus, Oocystis eremosphaeria, Tetraedron verrucosum, 

 Characium curvatum, and Chlorbotrys limneticus. — New varieties are proposed, as follows: 

 Chroococcus limneticus var. elegans, Westella botryoides var. major, Oocystis natans var. major, 

 Micr actinium pusillum var. elegans, Actinastrum hantzschi var. elongatum, Scenedesmus 

 arcuatus var. capitatus, Sorastrum americanum var. undulatum, and Botryococcus protruberans 

 var. minor. — The following new combinations appear: Quadrigula pfitzeri (Ankistrodesmus 

 pfitzeri Schroder), Kirchneriella obesa var. major (Kirchneriella major Bernard). — Critical 

 notes are given for Phaeococcus planctonicus , Dactylococcopsis acicularis, Trichodesmium 

 lacustre, Aphanizomenon flos-aquae, Gonium pectorale, Tetraedron proteiforme, Polyedriopsis 

 spinulosa, Closteriopsis longissima var. tropica, Kirchneriella elongata, Actinastrum hantzschi, 

 Crucigenia irregularis, C. lauterbornei, Sorastrum americanum, Characium limneticum, Clos- 

 terium aciculare var. subpronum, and Botryococcus braunii. The description of Gloeocystopsis 

 limneticus is amended. Critical notes on the genera Asterococcus and Pediastrum are included. 

 — J . R. Schramm. 



MORPHOLOGY AND TAXONOMY OF BRYOPHYTES 



Alexander W. Evans, Editor 



699. Andrews, A. LeRoy. Bryological notes — V. Scapania nimbosa from Norway. 

 Torreya 19: 49-51. 1919. — This hepatic, previously known only from a few stations on the 

 western coasts of the British Isles, was collected by the writer in 1907 in the Tverfjeldene 

 (limestone) region of western Norway. — J. C. Nelson. 



700. Claassen, Edo. Mosses of several Ohio counties. Ohio Jour. Sci. 19: 362-366. 

 1919. — A list is given of the moss flora of northern Ohio. It includes 5 Sphagnaceae, 72 Acro- 

 carpi and 79 Pleurocarpi. — H. D. Hooker, Jr. 



701. Dixon, H. N. Miscellanea bryologica— VI. Jour. Botany 57: 73-80. 1919 — 

 Chaetomilrium Deplanchei (Besch.) Duby and its allies are first considered, C. Geheebii 

 Broth, and C. tahitense (Sull.) Mitt, being studied in detail, with critical notes on material 

 from the New Hebrides, New Caledonia and other localities. The conclusions are reached 

 that C. Geheebii is a synonym of C. Deplanchei and that C. tahitense should be considered 

 merely a variety of the latter species, the new combination C. Deplanchei var. tahitense (Sull.) 

 Dixon being made. Critical studies and notes are then given on the following species: Gym- 

 nostomum oranicum Rehm. of South Africa, which is definitely referred to the genus Weisia 

 under the name W. oranica Rehm.; Anoectangium scabrum Broth, of German East Africa, 

 which is made a synonym of A. pusillum Mitt.; Taxithelium Gottscheanum (Hampe) Broth, 

 of the Philippine Islands; Hypnum scabrellum Lac. of the East Indies, which is 

 made a synonym of Sematophyllum lamprophyllum Mitt.; S. decipiens Dixon, a new species 

 from Borneo; Bryum Bescherellei Jaeg. of New Zealand, which is made a synonym of B. 

 erylhrocarpoides Hampe & C. M.; and Barbella Levieri (Ren. & Card.) Fleisch. of eastern 

 Asia. A few corrected determinations from an earlier paper on Ceylonese mosses are like- 

 wise included. — K. M. Wiegand. 



702. Evans, Alexander W. Hepaticae of St. Croix, St. Jan, St. Thomas and Tortola. 

 In: N. L. Britton. The flora of the American Virgin Islands. Mem. Brooklyn Bot. Gard. 

 1: 104-109. 1918. — After a short historical introduction 21 species from the islands in ques- 

 tion are listed. These include 13 Lcjeuneae, 3 Frullaniae, and 1 representative of each of the 

 following genera: Riccia, Plagiochila, Radula, Notothylas, and Anthoceros. No new species 

 or combinations are proposed. [See Bot. Absts. 1, Entry 1077.] — A. W. Evans. 



