26 COLLINS -iXD HEHVET. 



*4. S. MTOCHBOUS Agardh ex Bomet & Flahault, 1887, p. 104; 

 Kutzing, 1850-52, p. 7, PL XXV, fig. Ill; P. B.-A., Xo. 1902. On 

 perpendiciilar cliff, Paget, Aug., Collins; and conunon in company 

 with Calothrix species etc. on rocks between tides. This species has 

 a very wide distribution as a plant of rocks etc., dripping with fresh 

 water, but in Bermuda it is commonly found with distinctly marine 

 species, in mats on flat rocks in the literal zone. 



*5. S. CEUSTACEUii Agardh ex Bomet & Flahault, 1887, p. 106. 

 On sand near Mangrove Creek, Hamilton, Jan., Farlow. 



ToLTPOxmux Kutzing. 



*T. TEN^ms Kutzing ex Bomet & Flahault, 1887, p. 122; Kutzing, 

 1850-52, p. 9, PI. XXXI, fig. II. Among Oedogonium, in ditch in 

 Devonshire Marsh, April, Collins. 



Hassallu. Berkeley. 



*H. BTSSOiDEA Hassall ex Bomet & Flahault, 1887, p. 116. On 

 bark of Juniperiis berrnvdiana, rather common. 



Family STIGOXE:^L\CEAE HassaU. 

 ]\Iastigocoleus Lagerheim. 



M. TESTAEOi Lagerheim ex Bomet & Flahault, 1887, p. 54; 1889, 

 p. CLXII, PI. X, fig. 4. In dead shells of moUusks, with Gomontia 

 etc. 



Hapalosiphon X'ageU. 



*H. IXTBICATUS AY. & G. S. West, 1895, p. 271, PL XV, figs. 16-28; 

 P. B.-A., X'o. 1855. In ditch in Devonshire Marsh, April, Dec, 

 CoUins. 



Stigoxeiia Agardh. 



*S. LSTFORME Kutzing ex Bornet & Flahault, 1887, p. 75; Kiitzing, 

 1850-1852, p. 15, PL XXXVIII, fig. 3. Feb., H. Kennedy in Farlow 

 herbarium. 



FiscHEEELLA Gomont. 



*F. AMBiGUA Gomont, 1895, p. 49, PL III. On stone wall, Jan., 

 Farlow. 



