DICTTOT Li 



:ni at a considerable depth, beyond the reach of the 

 tiae. And the differencea between the two are precisely 

 of the nature of those caused by deep water. For this 

 reason I am inclined to question its righl to be considered 

 a species distinct from 8. rhizodes. 



XXI. DI( TYOSEPH* H 



41. fceniculaceus : frond setaceous, 

 yen much branched ; branches capillary, decompound 

 muh* Bnbulate, alternate or scattered, rarely opposite, G 

 Alg. Brit. p. 56. t 8. (Atlas, PL \. Pig. 10.) 



Scytosiphon foeniculaceus, Ag. Fucus subtilis, Turn. Conferva 



foeniculacea, J 7 ud*. 

 Hob. In rock-pools, between tide-marks, on Btones, or growing 



parasitically on other Algae. Annual. Spring and summer. 



Common, 

 A common inhabitant of tide-pools, ami not inelegant, 

 especially when clothed with the lino soft, hairs which 

 cover its surface closely, when in a young and vigorous 

 state, before it has suffered from the wear and tear of its 

 Bhorl existence. A distinguished Swede. Areschoug, re- 

 gards this plant as an abnormal state of ChordariaflageUv- 

 <. in winch the horizontal filaments o{ the periphery 

 have not been developed. 



WIT. STBIAEIA. 



42. attenuata (The tapering Striaria) ; branches and ramuli 

 mostly opposite, tapering to each extremity, Gfrev. Crypt. 

 Fl. (>>,/.) p. II. (Atlas, PL XI. Fig. 11.) 



siphon olirasc s, I Carmichaelia attenuata. 



Zonaria Naccariana, J//. Z. lineolata, Ag. Stilophora cri- 

 nita, Ag. Solenia crinita, Ag. S. attenuata, J//. Ulva 

 attenuata, Nac. Dictyota lineolata. Q i onferva eri- 



nita, Ruch. 

 Hi),. Parasitical <>n the smaller Alga?, generally growing beyond 

 the tide range. Annual. Summer. 

 As far as the British Flora is concerned, the merit ^{ 

 having discovered this plant belongs to the late talented 

 and indefatigable Captain Carmichael, of Appin, who de- 

 tected it upon the wesl coasl of >e».t land, in the yea 

 Or L826. In l^L'7 a figure of it appeared in Dr. (Jreville's 

 f Cryptogamic Flora;' in L831 it was discorered in Ire- 

 land, ana in L833 added to the Flora of Devonshire. Bui 

 if the very numerous - - detailed above, and many 



