— 5 



Before entering on the description of the plant I may yet add 

 that when Maze and Schramm (1. c. p. 178) write: "II n'existe 

 qu'un seul specimen de cette plante, qui ne s'est plus montree sur 

 les cotes de I'ile depuis 1870", this remark does not quite agree 

 with the real truth as I have had an opportunity of seeing 3 specimens 

 in the above mentioned Herbaria and of the specimens found here 

 at all events the one in 

 Agardh's Herbarium is a 

 large one while that in Herb. 

 T h u r e t is only a fragment. 



The specimens when 

 living had a very gelatinous 

 and lubricous surface so 

 that they slipped out of 

 one's hand like an eel; on 

 the other hand the consi- 

 stency was rather tough. 

 The colour was a dark red- 

 brown. The thicker main 

 branches which reach a 

 thickness of about IV2 cm. 

 were somewhat compres- 

 sed, the thinner nearly 

 terete. The surface was 

 smooth in places, being 

 somewhat curled or crisp 

 especially in the thicker 

 branches. 



The plant was fastened 

 to stones and shells on the 

 bottom by means of a small 

 roundish disc at the base. 



The specimens were irregularly ramified on all sides, often 

 too with numerous proliferations at the apices (cfr. plate 1). 



On drying they adhere strongly to the paper and gradually 

 take on a dirty yellow-brown colour. 



A transverse section shows the middle of the thallus to consist 

 of a tissue of colourless, rather poorly ramified, cell-threads which 

 are loosely interwoven (Fig. 3 E) ; the cell-threads are from 2 to 

 12 u thick and consist of rather long and thick-walled cells. 



Fig. 3. Nemalion Schrammi (Grn.) B0rgs. 



A , assimilative filaments with two carpogonic branches 

 (140:1). B and C, groups of carpogonic branches (B, 160:1, 

 C, 140:1). D, cystocarp with decayed trichogyne (140:1). 



E, colourless cells from the middle of the thallus (140:1). 



F, Two assimilative cells with chromatophore , pyrenoid 



and nucleus (250 : 1). 



