164 



678. EUCHBUMA SPINOSA, J. Ag. 



a. Thallus. (Agar Agar.) 



Note. This seaweed has been imported into this country nnder the 

 name of Agar Agar, and has been used in the form of gelatine, for 

 dressing silks and other textile fabrics. According to Professor Archer, it 

 has also been imported under the name of Ceylon Moss. See P. J. [1] , 

 vol. xiii., pp. 313, 448. It belongs to the natural order Sphaerococcoideje. 



679. Fucus VESICTJLOSUS, L. (Bladder Wrack, Sea Oak, Sea Lettuce.) 



a. Thallus. 



Note. This Fucus is distinguished from the other species by. the 

 tballus having a midrib, and by not being serrate ; also by the numerous 

 air-bladders in the frond. It is of a blackish brown colour. It was 

 at onetime recommended as a remedy for obesity. P. J. [2], vol. iv., 

 p. 131 ; [2] , vol. viii., p. 616. Bentley, Man. Bot., p. 709. It belongs to 

 the natural order Fucaceae. See Bentl. <& Trim., Med. Plants, tab. 304. 



680. GlGARTINA MAMMILLOSA, 7. Ag. ; CHONDRUS MAMMILLOSUS, GreV. 



a. Thallus. 



Note. This seaweed is a native of this country. It is frequently met 

 with in commerce intermixed with Chondrus crispus, from which it may 

 be readily distinguished by the presence of numerous stalked tubercles 

 scattered over the upper portion of the frond, and by the lower portion 

 of the frond being channelled. See Pharmacographia, p. 681. For fig., 

 see Per. Mat. Med., vol. ii., pt. i., p. 11. The plant belongs to the 

 natural order Gigartinese. 



681. GRACILARIA LICHENOIDES, Grev..; SPB.SROCOCCUS LICHENOIDES, 



Agardh. ; PLOCARIA CANDIDA, Nees. 



a. Thallus. (Ceylon Moss, Jaffna Moss.) 



Note. This seaweed is used like Carragheen Moss. It is the Agar 

 Agar Carang of the Malays. For fig., see Per. Mat. Med., vol. ii., pt. i., 

 p. 14. See also Pharmacographia, p. 260. It is official in the Indian 

 Pharmacopeia. It belongs to the natural order Sphserococcoidese. 



