CRYPTOGAMIA. ALGAE. 1942. Fucus. 1807 



csralhides. Stems fomewhat 3-fided: branches alternately fpread ; 



branchlets denticulate each fide, forked at top. Gmel. 

 plicatus. Capillary, uniform, much branched, entangled, nearly 



tranfparent. Gmil 1^.. 2. 

 rudis. Roundifh, much branched; branchlets alternate, fafcicled, 



very fhort, tubercled, rough. Gmel. 15, 2. 

 uphyllanthos. Cartilaginous, round, entangled : ultimate branches 



fubulate, thickened at top, or divaricate 2-ways, with tranfparent 



tubercles at the divarications. Buxb. cent, 2. /. 9./'. 1. 

 Serra. Cartilaginous, fimple, proftrate, befet with fubulate bridles 



oppofite by pairs. Buxb 8. 3- 

 Jertularioides. Cartilaginous, erect, deprefTed, very thin, branched; 



fronds briftle-like, imbricate, pinnate; divifions numerous, in- 

 curved, entire. Gmel. 15. 4. 

 *Wigghii. Filiform, tender much branched; branchlets fetaceous, 



nearly fimple, fcattered, with lanceolate pointed tubercles at their 



tips. Eng. Bot /, 1 165. 

 *afparagoides. Filiform, tender, much branched; branchlets fe- 



taceous, oppofite, alternately tipt with globular tubercles. 



Eng. Bot. /• 571. 

 *pedunculatu$. Filiform, pinnately branched ; branches capillary, 



clothed with obovate, ilightly peduncled tubercies, filamentous 



at top. E. Bot. 545. 

 Bailloviana. Stem flattifh above, branched; filaments pencil- form, 



very minute, crowded, lax, floating. Grifel. Ic. 

 Baftera. Stem round, branched at top : tubercles l-feeded, ovate, 



alternate. Baft. op. 2. /. 12 /. /. 

 *capillaris. Filiform, alternately much branched; branchlets fome- 

 what 2- rowed, fubulate, (hort. Hud;. 

 *Thrix, Filiform, tubular, unbranched, capillary, many threads 



from the fame bafe. Ner- Brit. 12. Probably a Conferva. 

 *clavellofus. Filiform, tender, tubular, much branched; branches 



and branchlets fomewhat alternate and 2-rowed : tubercles lateral 



cup-fhaped. Eng. Bot. 1203. 

 *kaliformis. Fi'iform, rather gelatinous, tubular, much branched ; 



brandies and branchlets fomewhat whorled, contracted at the 



joints: tubercles globular, lateral. Eng. Bot 640. 

 ^articulatus. Tubular, concatenately jointed, with ovate-cylindrical 



joints: branches uniform, forked and whorled. 



Ner. brit. t. 8. 

 *Opuntia. Somewhat comprelTed, folid, jointed, much branched ; 



joints obfoletely lanceolate : branches horizontal, pointed. 



Ner. brit. t. 1 6. 

 ^amphibius. Capillary, much branched: branches and branchlets" 



alternate* involute at their tips. Eng. Bot, t. 1428. 



