350 



THE JOUENAL OF BOTANY 



3. ANTiTHAMNiOiNELLA TEEis'iFOLiA, iiov. comb. {Antitlictmnion 

 ternifolium De Toni ; Calliiliamnion ternifolium Hook. & Harv.), is 

 a deep-water epiphyte from Cape Horn ; rose-red, flaccid, membranous, 

 0-5-12 millimetres in height. It branches indefinitely, and bears 

 whorls of 3 (rarely 4) slender, simj^le, erecto-patent ramelli. Articula- 

 tions of the stem 4-5 times the diameter, twice as long as broad in 

 the branches ; the tetraspores divide triangularly. Cystocarps large, 

 bilobed. 



Fig. 5. — Antithamnionella verti- 

 cillata Lyle. X 90. 



Fig. 6. — Antdhamnionella verti- 

 cillata. Tetraspores. X 400. 



The original description (in Lond. Journ. Bot. iv. 272 ; 1845) is 

 as follows : — 



*' Pusillum vage dichotomum, ramis pellucide articulatis, ramulis 

 saepissime ternis e quoque ramorum geniculo enatis brevibus tenuibus 

 simplicibus subulatis erecto-patcntibus, articulis ramorum diametro 

 4-5-plo, ramulorum subduplo longioribus ; favellis magnis bilobis ad 

 apices ramorum sitis." 



My best thanks are due to Miss A. Lorrain Smith and Mr. A. 

 Gepp, M.A., for their kind help and valuable advice, and to the latter 

 for suggesting the name for the new genus. 



