214 



THE MICROSCOPE. 



besides rendering them thicker. When dried, and infused 

 in water, it exhales an odour resembling violets. 



Delessaria sanguinea. 

 This beautiful bien- 

 nial variety is so called 

 after the celebrated 

 French patron of science, 

 Baron Delessert. It is, 

 when first taken, of a 

 rich blood-colour, which 

 it soon loses. 



Seirospora Griffithsi- 

 fana derive its name 

 rom its celebrated dis- 

 coverer, Mrs. Griffiths of 

 Torquay, and two Greek 

 words, signifying chain- 



Fig. 124.Cutleria dichotoma. 



Chondrus crispus, sig-r 

 nifying a crisp-cartilage. 

 This and the next 

 specimen are nourishing 

 and wholesome articles of food. 



Plocamium coccineum, or B raided hair plant, is a 

 perennial of a beautiful colour, especially when exposed 

 a little to the sun after a shower of rain. 



Cladophora gracilis, the Graceful branch-bearing plant, 

 is of a yellowish-green, and obtained on rocks from half- 

 tide level. When dried, it retains its glistening appear- 

 ance. There are many varieties of this species. 



Phyllophora rubens, receives its name from its purple 

 .rose colour. It is perennial, and found in deep-water. 



Callithamnion plumula, the Feathery beautiful little 

 shrub, is a captivating alga, the colour fine, and the 

 branches beautifully pectinated, which give to it a feathery 

 appearance. 



Polysiphonia parasitica, or Many-tubed parasitic alga. 

 Its colour is reddish-brown, it is pretty, and is regarded 

 as rare. 



Wrangelia multifida. This beautiful plant derives its 

 from the celebrated Swedish naturalist, Wrangel, 



