1 88 Dr. Goodenough and Mr, Woodward*/ Observations, on 



bling a comb in form. Thefe teeth, when the plant is dried and dis- 

 played, give it fomething of a reticulated appearance, and probably 

 induced Gmelin to adopt the not very appofite name ofplocamium. 



The fructification confifts of minute tubercles fcarcely fo large 

 as muftard feed, for the moft part feflile, it being very rare to meet 

 with one fupported on a peduncle, affixed to the fides of the fmaller 

 branches in considerable quantity, but always fingle, and. when 

 filled with ripe feeds nearly black. We have obferved, on fome fpe- 

 cimens, tubercles fomewhat larger, of the fame colour as the frond*, 

 and always empty. Whether the plant be dioecious, and this the 

 male fructification, muft be left to future enquiry.. 



When old, orexpofed on the beach, the colour is frequently pale 

 yellow or white intermixed with the red ; but when young and vi- 

 gorous, it is never feen of any other colour than bright red ap- 

 proaching to fcarlet, and the moft brilliant of any of the genus : 

 when dried, this changes to a purplifh red. 



It is found on every part of the Britifh coaft, and is very often 

 parafitical on other plants, particularly the larger Fuci. — We have 

 obferved it on veficulofus and fibrofus, and alfo on crifpus. — When in 

 this fituation it frequently forms thick tufts not exceeding an inch 

 in height, and might eafily be miftaken for a different plant* 



46. Fucus plumosus. 



F. fronde fubcartilaginea. ramofifuma,ramis fupra-decompoiito* 

 pinnatis, ramulis oppofitis ; tuberculis globofis pedunculatis. 

 Herb. Linn. Buddie, p. 29. n. 7. Ft. Dan. t. 350. R. Syn.. 

 p. 38. «. 2. t. i.f. 5. Linn. Syjl. Nat. FL Ang % p. 587. FL 

 Scot. p. 955. Withering, vol. 3. p. 254. 

 Habitat in littoribus Britannicis pafllm. 



Radix 



