1 72 



as Long as broad, 

 maturity, a compad dark-green mass ; diss* . 

 pellucid, llarr. Manual^ ed. 1. p. L31. (Atlas, I". L\.\. 

 Fig 3 

 Hormotrichum l>:n il:^ »i Lplonema bangioides, ITass. 



Hob. < >n rock-, etc., near low-water mark. 



This species is, in many respects, similar 1 >( igana s 



hut Larger. From mosi others it may be known by its 

 very lubricous and glossy tufts and soft feel. Except in 

 colour there is much outward resemblance to "Bangiafusco- 

 purpurea, though under the microscope no two plants 

 need be more unlike. When the planl firsl m 

 pearance, the colouring substance nearly fills the cell, and 

 is of a pale colour, bul gradually it condenses in. i a small 

 subcylindricaJ and dark-coloured spore in the centre. 



'•Vl~ . Young-ana (Young's Conferva)} filaments Bhort, tufted, 

 Btraighl or nearly so, somewhat rigid; artacu 

 twice as Long as broad, dissepiments finally contracted, IjUIiv. 

 Conf. t. 102. (Atlas, PL LXXII. Fig. 



. is. Bot. Eormotrichum Xbunganum, Ktz. 

 II bogonum, Ktz. 

 Hah. ( )n rock- and stones near high-water mark, on various 

 of the coast. Annual. Summer. 

 To the naked eye this plant has very much the aspe 

 Tnjnghya Carmichaelii, with which it is properly a con- 

 gener; bul it is readily distinguished under the micro- 

 scope, by the much Longer cells, and, especially in ad 

 specimens, by the contraction of the tube at the d 

 ments. It bears a far closer resemblance to C. ba igioides, 

 but is a shorter and comparatively stouter plant, and far 

 less lubricous. The contents of tin 4 cells also arc more 

 granular and dense. 



:i2s. clandestina (The hiding Conferva), Berk. GL Br. Alg. 

 t. 13. /. 1. 



Hnh. ? 



This species, figured by the Rev. M. J. Berkeley ill his 



'Gleanings,' is unknown to me. 



\ . oriihocn.r.TK. 



329. Hystrix | '/" \lochate); \ mute, 



pale-green, uoary from its numerous rigid setae, \ 

 PL LXXII. 1 -i. 338 



1 »u %U ms of { 

 water ditches, upon the k I ises ; rery rare. 



