I 0LLIN8 \\!> lll.i;\ ET. 



sometimes the divisioD proceeds do farther, but usually a vertical 

 division occurs in one of the halves, often in both, bu1 in the latter 

 case the divisions of the two are seldom in the same plane. 



7. A. Nemalionis DeNot Borgesen, 1915, p. 55; Chantranna 

 alionis Rosenvinge, 1909, p. 126, fig I; CaUithamnion 

 alionis De Nbtaria in Erb. Critt Ital., No. 952. Harrington 



Sound, April, Collins, growing on Tamarisk branches which had Lent 

 down until submerged. As in .1. Sagraeanum the erect filaments 

 arise from a plexus of irregular horizontal filaments, hut in .1. Nemar 

 lionis the latter emit descending filaments which penetrate the host 

 In the Bermuda plant these are less developed than in the European 

 plant growing on Nemalion, probably on account of the more resisting 

 character of the substratum of Tamarisk, as compared with Nemalion, 



8. A. Thuretii (Bornet) comb, now; Chantransia Thuretii Kylin, 

 1*»()7. j). 11 ( .». fig. 28; C. efflorescent forma Thuretii Bornet, L904, p. 

 XVI. On ('odium decorticatum, Cooper'.- [sland, Aug., Collins. 

 With monospores. 



<>. A. Hypneae Borgesen, 1915, p. 51, fig. 54; Chaniransia Uypneae 

 Borgesen, 1909, p. 2, i\u;. 2. On Ceramiwn datnrtatum, in company 

 with A. crassipes, St. David's [sland, Feb., Hervey. With mono- 

 sport 



Trichogloea Kiitzing. 



T. HeBVEYI Setchell ins.; P. B.-A., Xo. 2034. In tide pools, 

 Gravelly Bay, March, April, Hervey; from low water mark to two 

 meters depth, near Cooper's Island, April, May, Collins. Extremely 

 gelatinous, not calcified. Appearing in March, but not found after 

 midsummer. 



Helmi.ntikx i.adia J. G. Agardh. 



H. calvadosii (Lamour.) Setchell in P. B. -A., Xo. 2035; Dumontia 

 calvadosii Lamouroux in Duby, L830, p. 941; Xr,,i(tli<>fi purpureum 

 Harvey, L846 51, PI. CLXI; Helminthocladia purpurea J. G. Agardh, 

 1 sr, ] ? p. ii i. Bailey's Bay, Feb., Castle Harbor, March, Wadsworth; 

 Dingle Bay, March, North Shore, April, Old Ferry Road, April, 

 Hervey; Tucker's Town, St. David's Island, Long Bird [sland, April, 

 Collins. Specimens in Kemp herbarium, marked Helminthora divari- 

 cata and Helminthocladia djmricata both belong here. On -tones 

 from half tide down, not uncommon in quiet water; antheridia and 



