i8©4 CRYPTOGAM! A. ALGAE. 1942. Fucus. 



truncatus. Membranous, 3 and 4-forked, with truncate fegments 



crenate curitd at top. Pall- it. ^ p. 760. 

 glacialis- Flat, linear* forked, many-cleft, much branched, with a 



very fine fringe. Palh it. 3. 760- 

 filicinus* Leathery, nearly cylindrical, much branched ; branches 



f ( »read into an orb, with frondofe fegments near the tip, 



JVulf.Jacq.z t 15. / 2. 

 fruticulojus. Leathery, round, fib' form, decompoundly branched 



above; branches nearly fetaceous, with alternate lax branchieu, 



and frnall oinnate-denticulate fubdivifions. 



JVvJf\ J acq. 3. /. 16 . f, 1 , 

 *bulhofus. Palmate, with enfiform fegments: Rem flat, undulate 0% 



the margins below; root buUxms, rou^h Ner. Brit- 4. 

 *rubens. Somewhat membranous, forked, proliferous in a chain-like 



manner: branches elliptic; brar.chiets dilated and cloven at top. 



Eng, Bot, t. 1053. 

 *mrvegicus. Cartilaginous, forked; branches linear, entire, rounded 



at top : tubercles hemifph&rical, feated on ihe uiik. 



Eng. Bot /. ic8o. 

 *crifpus- t Cartilaginous, forked, curled-undulate: branches dilated, 



fentire: tubercles folitary, fcattered, immerfed, concave on one 



fidt. Nsr. Brit, n. 12 

 m mamillofus. Cartilaginous, forked, channeled on one fide: branches 



d»t; ted entire, clothed on both fides with mamillary tubercles. " 



Eng Hot. /. 1054. ••' 

 *canaiici(Iutus. Linear, forked, entire, flat-topp'.d, channelled c,a 



one fide ; the :ips cloVen, oblong, obtuie, tumid, tubercled. 



Etig Bot t 32/ v 

 genkulatus. Stem and branches jointed : frond forked, pellucid, 



equal. \ ficl ! terminal Gmel. i A* 3. 

 *lor*us., Forked, linear, acute, tuuercltd on all fides, with .cup- 

 like bafe 1 . Zng. not- 560 

 triqueter. Frond*, 2-cageci, branched: leaves petioled, denticulate ; 



fce'ficles'tomerfed, oolong, d Mant. 



racemefus. Stem rounr-, creeping branched* 1 earl els: veiicies pbovate, 



in crowded racemes, f nrjk. 

 trinodis. Stem round, branched; branches With 3 inrledted veficies, 



fubulate at top. Forjk. 

 JeticuLfns. Round, branched, fcatteredn warty; branches dilated at 



the 'bafe intoapapil'ous veficle. torjk 

 * nodofus* Somewhat forked: leaves, 2-rowed, '■ duncled, ro-md- 



iih, entire, fertile: veficies innate, folhary, broader than ihe frond 



Eng. Bot. 570 

 pyriferus. Filiform, forked: leaves enfiform, membranous, folium 



ferrate; terminal-ones inflated, petioled. Mant* 



