104 I 0LLIN8 WD m i;\ El . 



)\ Fveu$ crinalis Turner, 1819, p. 1. PI. ( XCVTIL North Village, 

 Dingle Bay, Jan., Hervey. A -lender, irregularly branching form; 

 the erect filaments are more flattened than in the COmmOD northern 

 forms, and the branching is scanty, but there seems to be no b< 



place for it than here. 



(j. BPATHUIATUM (KutZ.) Hornet, L892, p. .. criitalr 



var, spathtdatum Hauck, 1885, p. 193, fig. s l: Acrocarpus spathtdahu 

 Kutzing, L868, p. 13, PI. XXXVI, d g. Harrington Sound, I 

 II- • ey. Elesembles G. crinale, but the upright frond- are terete ex- 

 cept at thesummit, where they are suddenly flattened; in the fruiting 

 imena numerous short branches arise here, making a tubercular 

 mass, but always showing a distinct flattening. 



L. G.fumllum (Stack.) Le Jolis, L863,p. 139; P. B.-A., No. 2182; 

 Fucus ptuiUtu Stackhouse, 1795, p. 16, PL VI. North Shore, Jan., 

 Nov., Tucker's Town, Feb., Hervey; above and below Flatts Bri 

 April, May, Aug., Collins. Tetraspores in March. April, Now Very 

 common on pebbles, shells and flat rock bottom in shallow quiet 

 water all about the islands, forming a dense mat, usually not over 

 one cm. in thickness, the creeping basal part and the lower part of 

 the upright growth terete, the upper part flat. As we understand 

 this species, it includes G. pulvinatum (Kutz.) Thuret, and G. repent 

 Kiitz. Form- corresponding to Kiitzing's plates of both of thea 

 well as to typical G. pusillum, are found in Bermuda material, with 

 all intermediate forms. 



Var. conchicola Piccone & Grunow in Piccone, 1SS4, p. 316, 

 P. B.-A., Xo. 2183, is a reduced form, common on small shells in 

 -hallow water; the upright fronds seldom reach 5 mm. high; they 

 are mostly flat for their entire length, and only sparingly branched. 

 But the same form occurs also on stone-, and every intermediate can 

 be found up to plants with erect fronds, 2 cm. high. Forms which 

 we refer to G. purittum occasionally occur in which the terete stipe 

 expand- into a flat frond, up to 5 cm. long and 3-5 nun. wide. This 

 is very different in appearance from the usual form, but it intergrades 

 so that it and var. conckicola must be regarded as extreme form- of a 

 very variable specie-. 



VVUBDEMANNLA Harvey. 



W. SETACEA Harvey, 1853, p. 246; P. B.-A., N-». 1887. A very 



common plant in quiet shallow water, all about the islands and 



dredged down to 1^ m. It is quite variable in size, amount of rami- 



