104 SPHiEROCOCCOIDE.E. v. 



on the South African continent, and along the southern shores of Australia and 

 New Zealand. 



1. 'NiTOVJiYLLVM. punctatum. Yar. ocellatum, Grev. ; frond linear, many times 

 dichotomous, fastigiate, the axils rounded and apices blunt ; sori scattered over the 

 lower segments of the frond. Harv. Phyc. Brit. t. 203, Jig. 1. /. Ag. Sp. Alg. 2, p. 

 659. Nitophyllum ocellatum, Grev. Alg. Brit. — Grev. Scot. Crypt, t. 347. Aglaio- 

 phyllum ocellatum, Mont. — Kiltz. Sp. Alg. p. 867. 



Hab. At Key West, W. H. H. (39). Smithville, N. Carolina (?), Mr. C. Cong- 

 don, (v. V.) 



The Key "West specimens are about two inches high, exceedingly thin and filmy, 

 divided nearly to the base into repeatedly dichotomous lacinia3, which are about a 

 quarter inch wide. The margin is flat or slightly undulated. The sori are of 

 large size, neai'ly orbiculai', irregularly scattered on the laciniaj. Colour a delicate 

 rosy red. Substance very soft and flaccid. It adheres most closely to paper in 

 drying. 



The specimens examined are very similar to a specimen from Catania, Sicily, 

 preserved in Herb. T.C.D. They are smnller and more delicate in substance than 

 the ordinary British form of this variety ; but in so variable a species no importance 

 attaches to such minor differences. 



Mr. Congdon's specimens from the mouth of the Wilmington river are very 

 imperfect and destitute of fructification, but, so for as I can judge, belong to the 

 ordinaiy form of N. jnmctatum. It is to be hoped that some southern collector may 

 ascertain the fact. 



2. Nitophyllum lacerattim., Grev. ; frond sessile or shortly stipitate, dichotomous, 

 traversed by numerous slender, branching, and anastomosing nerves ; segments 

 linear, variously cleft and lobed, waved at the margin, obtuse ; spots of tetraspores 

 oblong, either intra-marginal or borne on distinct leafy processes of the margin. 

 Harv. Phyc. Brit. t. 267- J- Ag. Sp. Alg. 2, p. 657. Cryptopleura lacerata, Kutz. 

 Sp. Alg. p. 870. Fucus laceratus. Turn. Hist. t. 68. E. Pot. t 1067. 



Hab. Newfoundland, De la Pylaie, fide /. Agardh. Golden Gate, California, Capt. 

 Pike (47). (v. V.) 



Frond (in the Californian specimens examined) six to eight inches long, cleft 

 nearly to the base into numerous linear segments half an inch wide below, 

 branched alternately or subpalmatifid above, each ultimate lacinia a quarter inch 

 wide, linear oblong, obtuse, erect, the axils rounded. The whole substance of these 

 specimens is traversed with slender, branching, immersed veins, very visible when 

 the frond is examined with a pocket lens. Tetraspores either in linear, intra-mar- 

 ginal, longitudinal sori, or in little, roundish marginal leaflets. Colour a livid 



