1 16 i UNS wi> in ttVET. 



Bection, elongate in younger, squarish in older parts. Tetrasp 

 tripartite, up to 60 ft diam., densely packed in small roundish or oval 

 son, generally distributed over tin* frond, slightly projecting on both 

 surfaces; cystocarps unknown. W. Faxon; Miss Wilkinson; Har- 

 rington Sound. Ducking Stool, Feb., Farlow; Dingle Bay. April, 

 caves at Tucker's Town. May. Collins. On rocks below low water 

 mark: forming dense masses, crisp when first taken from the water, 

 but soon softening into a shapeless mass. The branching is so dense 

 and the substance so tender that it is difficult to disentangle individual 

 plants. When growing the color is mauve, on exposure changing 

 almost instantaneously to orange; when mounted on paper lake or 

 rosy red. In habit like N. marginatum Harvey, Ceylon Algae No 

 but that species lacks the ciliiform teeth, and has somewhat .-mailer 

 cells out larger tetraspores, which are in less dense sori, and tend to 

 form a confluent marginal band. A specimen of A", venulotum Zan., 

 from Trieste, leg. Hauck, also resembles A'. Wilkinsoniae, but ha- more 

 slender segments, less densely branched and tufted, and distinct 

 though microscopic veins. 



Hypoglossum Kutzing. 



H. hypoglossoides (Stack.) comb, now; //. Woodwardi Kiitzing, 

 1843, p. 111. PI. LXV, fig. 1; Ddesseria Hypoglossum Harvey, 1846 

 51, PI. II: Fucus hypoglossoides Stackhouse, L795, }>. 76, PL XIII. 

 Jan., 19125, a single specimen, without exact locality, Hervey. The 



rather unfortunate combination we now use for the first time, appears 

 to l»e required by the international rul< 



(aloglossa J. G. Agardh. 



C. Lepmeubd (Mont.) J. G. Agardh, 1876, p. 499; P. B.-A., No. 

 2038; Ddesseria Leprieurii Montagne, L840a, p. 196, PI. V, fig. 1; 



Harvey, 1S.">:$, p. 9s, PI. XXII. ( '. Among other algae on mangroves 



and other objects between tide marks, less commonly pure or nearly 



so. Farlow; Burchell's Cove, Feb., Ely's Harbor, Dingle Bay, 

 April, Hervey; Hungry Bay, May, Collin-. Tetraspores in April. 

 The Bermuda material corresponds to C. mnioidesJ. G. Agardh, L876, 



j). ."((hi, 14 the segments being ovate, sometimes quite broadly so. and the 



14 I. .iter, is'.is, p. 235, .1. (;. Agardh intimates that most of the described 



specie- <if the L r eilll> may 1 >e only fonn>, depending 00 locality. This ap; 



to be his latest expression of opinion on the subject. 



