152 NACCARIA GLOIOSIPHONIA. 



XVII. NACCARIA. Endl. [Plate 20, D.] 



Frond cylindrical or compressed, filiform, solid, rose-red ; 

 central cells large, empty, those of the surface minute. Ra- 

 muli composed of jointed, dichotomous, whorled filaments, 

 surrounded by free gelatine. Fructification : spores, attached 

 to the whorled filaments of the (swollen) ramuli. Name, in 

 honour of F. L. Naccari, an Italian Algologist. 



1. N. Wigghii, Turn. Harv. Phyc. Brit. t. xxxviii. 

 Chatospora Wigghii, Grev. Alg. Brit. p. 153, t. 16; Hook. 

 Br. Fl. ii. p. 306 ; E. Bot. t. 1165 j Wyatt, Alg. Danm. No. 

 124. 



Sea shores, very rare. Summer. Annual. Yarmouth, Mr. Lilly Wigg. 

 Eastern and southern shoves of England and Ireland, and west of Ireland. 

 Usually thrown up from deep water. Frond 6 12 inches high, cylindri- 

 cal, filiform, much branched ; main stem about half a line in diameter, 

 attenuated upwards, repeatedly divided with alternate branches spreading 

 quadrifariously, the branches thickly set with minute, slender ramuli, ta- 

 pering to both ends, and from about half a line to a line and a half in 

 length. Structure of stem and branches cellular ; the ramuli composed of 

 minute, dichotomous, gelatinous filaments, radiating from the centre. 

 Colour a fine rose-red, given out to fresh water. Substance tender and 

 gelatinous, adhering to paper. Fructification situated in the centre of the 

 ramuli, which are then much swollen ; consisting of numerous minute red 

 spores, attached to the whorled filaments of the branchlet. 



XVIII. GLOIOSIPHONIA. Carm. [Plate 21, A.] 



Frond cylindrical, filiform, tubular, somewhat gelatinous ; 

 the periphery composed of radiating, coloured, branched, 

 jointed filaments. Fructification : globules of red spores 

 (favellidia) imbedded in the filaments of the periphery, to 

 which they are attached. Name, y*oioj, viscid, and o-itpuv, a 

 tube ; from the gelatinous, tubed frond. This genus, founded 

 on the Fucus capillaris of Turner, was originally proposed 

 by the late Capt. Carmichael, in his unpublished Alga Appi- 

 nenses, and has been adopted by Mr. Berkeley. Except in 

 the tubular frond it does not differ from Mesogloia. 



1. G. capillaris, Huds. Berk. Gl. of Br. Alg. t. 17, f. 3; 

 Harv. Phyc. Brit. t. Ivii. Fucus capillaris, Turn. Hist. t. 

 31 ; E. Bot. t. 1219. Mesogloia capillaris, Ag.; Harv. in 

 Hook. Br. Fl. ii. p. 386. 



In tide-pools, near low-water mark, very rare. Annual. Summer. 

 Shores of England, Ireland and Scotland in several places, but nowhere 



