*c 



1808 CRYPTOGAMIA. ALGAE. 1943, Conferva. 



*fruticuhjus. Filiform, branched; branches alternately repeatedlV 

 pinnate; ultimate hrarJch'ets ma. 7 -cleft, fetaceous ; tubercles 

 felTile, ovate. Efper.Sy. 



*viridis. Repeatedly pinnate, with all t hi dhtffions oppofite and ca- 

 pillary. PI, Dan. t. 886. 



194.3. CONFERVA. Herbaceous tubes or fibres^ moftly 

 feparated internally by tranfverfe partitions feeds featured 

 through the joints, or produced in folitary clofed tubercles 

 attached to the fibres- 



A. Filaments fimple. 



*echimlaia Glaucous»fibresjointed,fprcading every vvay from a centre^ 

 and forming a globe. Eng. Bot.t, 1378. 



*Ericetorunu Fibres thin, clofely entangled: joints rather long, a 

 little contracted at the partitions. Eng. Bot. 1 553- DWw. u 



*bipun£lata Yellowifh, (limy: joints fhort, cylindrical, with 2 dots 

 in each. Dillwyn Conferv. 2. 



*fontinalis. Filaments clofely compacted, very fhort, equal, with- 

 out vifiblc partitions. F'or. Dan 65 1. 3. 



*rivularis. Black -green, clofely compacted, often twifted, with ra- 

 ther fhort joints. Diliw. 39. 



*nitida. Splendidly lubricous: joints rather lone, cylindrical, with 

 double fpiral lines of fructification. DWw. t. 4. 



*Linum. Round, rigid, crackling, inflected: joints cylindrical, dufky, 

 with thin pellucid partitions. Dill 5.25.^. 



* capillaris. Round, rigid, curled, entangled, brittle: joints cy- 

 lindrical, fhort, with pellucid partitions: tubercles fdlile. 

 DWw. t. 6 

 fugacijjhna. Thin, flraight, evanefcent when dry : joints tranf- 

 parent in the cenire, with dufky partitions. Roth. Catleft. bot. 

 1. /. 2,/'.3. 



*fordida. Very thin, inflected: joints oblong, pellucid, with con- 

 tracted partitions. Roth, catal. \.t 2. 4. 

 ferruginea. Membranous, very thin: joints ovate, angular, pellucid 

 withdufky reticu^tions- Roth. 



hyemalis. Mucilaginous, thin, ferruginous, greenifh-grey and brittle 

 when dry: joints fhort, round, with peliucid reticulations; pard- 

 ons dufky. Roth. 



*limofa. Thin, fhort, mucous, clofely compact, greenifh-blue, with 

 indillinct partitions. Diliw t 20. 



*muralis. Thin, fafciate, rather rigid, with obfolete partitions and 

 very fhort joints. Eng. Bot. 1554. Diilw. 7. 



*peclinalis. Pellucid, broken, pointed: joints very fhort, cryftalline* 

 in the middle; partitions often diiTolved. Diliw. /. 24. 



*iecorticans. Thin, clofly compact, greenifh-blue: joints fhort,- 

 withobfcuredifTepirnents. Diliw. t. 26. 



