112 < 0LLIN8 wi» ill i:\ l 1 , 



1. II. ifuscifOBMifl (Wulf.) Lamouroux, 1813, p. 13; Hauck, 

 1885, p. 188, 6g. 81; P. B.-A . No. 2185; Fucua musciformis Wulfen 

 in Jacquin, 1789, p. 1~>1. PL \l\. fig. 3. Rein; Kemp; Miss 



is ton; Dingle Bay, Bailey's Bay. .Ian.. St. David's [stand, Feb., 

 Grasmere, March, Building Bay, Heron Bay, April, Hei 

 Hungry Bay, April, Cooper's [sland, Aug., Collins. Generally dis- 

 tributed; the well developed plant- with long, virgate branches, 

 beset with short ramuli, and with tip- hooked, arc not to be mis- 

 taken for anything else, but young ami stunted forms are hard to 

 distinguish from other species of the genus. 

 Wulfen's type was from Trieste, where he found the plant growing 



on crabs for sale in the fish market. His plate is excellent, ami shows 

 a slender form with filiform ramuli, often with constricted bases. W e 

 have seen similar plants from the Mediterranean and the Adriatic, 

 and on the American shore from ("ape Cod to Florida ami the v\ 

 Indie-. A form different in appearance has been distributed by 

 Bornet. collected at Biarritz; it i- stouter, the ramuli shorter and 

 more patent, and mostly with distinctly wider base, in dried specimens 

 often like rose thorns; hooked tips are very rare in this form, common 

 in the other. This form we have seen from various parts of the At- 

 lantic coast of Prance, and on the American coast from Beaufort. 

 X. C, to Florida and the West Indies. The two extreme form- are 



distinct in appearance, though less characteristic forms can he found. 

 Sterile plants can be found in both, but as far as we have observed, 

 cystocarpic plants usually have all the ramuli of the thorn-like type, 

 always some ramnli of this form; while tetrasporic plants have the 

 filiform ramnli with base ultimately constricted. The appearance 

 of the two types is so different that in Agardh's treatment of the genus, 

 L851, p. 441, the former would conic under Sect. I. Virgatae, " ramnlis 

 adultioribus basi constrictis," the other, p. 446, Sect, Spinuligerae, 

 "ramnlis subulatis, a basi latiore acuminatis." Both form- occur in 

 Bermuda. 



2. II. ckkvk uii.Ms J. G. Agardh, 1851, p. l'»l ; L876,p.564. Miss 

 Penis ton; Old Ferry, April, Hervey. This lack- the hooked api 



of //. mwciformiSi and is a more slender and more densely branched 

 plant; but the line between the two species is by no means clear. 



:;. II. m-ixi.i.i.v Ag. J. G. Agardh, 1847, p. 11; Sphaerooocctu 

 8pineUu8 Agardh, L822, p. 323. Cave by Gravelly Bay, Apr.. Hervey. 

 Forming a dense, inextricable mat on rock-, usually 1-2 cm. thick. 



There is probably do genus of red algae of this region the species of 

 which are so poorly defined, and the plants SO little characteristic 



