8 COCCOPHYCE.E. 



. 



Glaeocystis botryoides. Ktz. phy. Gen. p. 173. 



Thallus gelatinous, soft, sticky, green ; cells minute, globose 

 and oblong, associated in small families ; tegument colourless, 

 indistinctly lamellose, contents green. 



SIZE. Cells -002--004 mm. ; families -01--018 mm. 



Glceocapsa botryoides, Kutz. Tab. 1, t. 20. 



On wood, submerged or constantly wet. 

 Plate III. fig. 3. Cells magnified 400 diara. 



** Flesh-coloured, becoming reddish. 



Glaeocystis Pasroliniana. (Meneg. Nost, t. W,f. 2.) 



Thallus crustaceous, cartilagineous (horny when dry), about a 

 line thick, flesh colour; cells small, spherical, 2-4-8 associated 

 in families ; tegument very broad, distinctly concentrically 

 lamellose ; contents becoming yellowish, granulose. 



SIZE. Cells -0037--005 mm. ; families -24 mm. (Rabh.). 



Eabh. Alg. iii. 30. 



Microcystis Paroliniana, Meneg. Nost. p. 78. 



Glceocapsa Paroliniana, Kutz. Tab. i. 36, f. 5. 



On rocks constantly wet. 



Collected some years ago in Kent by Rev. M. J. Berkeley, and usually 

 found near the sea. 



Plate III. Jig. 5. Cells magnified 400 diam. 



Glaeocystis adnata. CHuds,) Nag. 



Thallus broadly expanded, gelatinous, firm, yellow-brown ; 

 cells globose, or oblong; contents brownish-green or brown, 

 granular; tegument colourless, pellucid, lamellose. 



SIZE. Cells -008--013 mm. (Rabh.). 



Rabh. Alg. iii. 31. 



Tremella adnata, Huds. Fl. Ang. p. 565. 



Palmella adnata, Lyngb. Hydro, p. 205, t. 69. Berk. Glean, 

 p. 40, t. 15, f. 2. 



Microcystis adnata, Meneg. Nost. p. 85. 



" Forming a thin yellow-brown, suborbicular, depressed stratum on 

 chalk cliffs, about high-water mark. The individual plants, which are 

 from 1 -6 lines diam., are but very little thicker in the centre than at the 

 margin. The surface is rugulose and shining, substance firm, between 

 gelatinous and coriaceous. In age the plant gradually becomes more 

 tawny, but at all times under the microscope presents a pale ochraceous 

 jelly filled with darker granules. Under a moderate magnifier the 

 granules appear globose, but under a lens with l-25th in. focus pellucid, 

 globose, colourless vesicles are seen to contain the darker granules, and 

 these are found to be elliptic. Sometimes the vesicles contain a little 

 tawny colouring matter, as though the sporules were broken down ; and 

 frequently the sporules burst through the coat of the vesicle in which 

 they are contained, and lie free on the general mass." Berkeley. 



Plate III. Jig. 4. a, natural size; b, cells magnified 400 diameters. 



