40 En-Floridete, Lemaneacea^, Lemanea. 



ridiiferis definitis, discretis confluentibusve, saepe in parte supe- 

 riore frondiuni verticillatis. 



Hab. locis variis Galliae (Sirodot). — Frondes fertiies 6-7 cm. 

 altse, olivaceo-flavescentes, exsiccatione nigrae. Tliallus invenitur 

 mens. I-III; fecundatio contingit mensibus III-IV; fructus maturi 

 reperiuntur mensibus V-VI. A Lemanea catenata caute digno- 

 scenda. 



6. Lemanea australls Atkins. Leman. U. St. p. 218, t. 7. f. 19-22, ^o 

 t. 8, f. 23-42, t. 9, f. 43-44, 47, 57, 59. — Thallo dense cfBspi- 

 tuloso, flavescente aut caeruleo-viridi, 2-5 millim. longo, filis alter- 

 natim ramosis rarius unilateralibus aut oppositis; frondibus fertili- 

 bus e thallo basigenis validis, ramis nunc rectis nunc valde arcua- 

 tis deorsum attenuatis, torulosis, vitta antheridiifora angusta et 

 prope basin interrupta, medio continua et irregulari, dein lata et 

 irregulari; carposporis 35-45 ij.. diam. 



Hab. in « Broad river » Columbiae et « Morgan Creek, Chapel 

 Hill, N. C. » Americae borealis Atkinson). — P^rondes fertiles juve- 

 niles virides, exsiccatione haud nigrescentes, adultiores nigrescentes 

 aut saltem exsiccatione saturatius coloratae. Cortex bistratosus. 



7. Lemanea grandls (WoIIe) Atkins. Leman. of U. St. p. 219, t. 9, 61 

 f. 46, 50, EntotJtrix grandis WoUe in Bull. Torrey Botan. Club 

 1887, Rabenh. Alg. n. 2538, Tuomeya grandis Wolle Freshw. Alg. 

 U. St. (1887), t. 66, f. 2-8. — Thallo ignoto; frondibus fertilibus 

 gracilibus, arcuatis, in individiiis maxime evohitis lenissime undu- 

 latis, vitta antheridiifera haud prominenti ; carposporis (maturis) 

 ovoideis aut sphaericis, 31-45 y.. diam. 



Hab. in rivulis ad «Bethlchem^^ Pensylvania? (Wolle, Atkinson), 

 ad «Falkland, Del.» (Commons, Farlow); an eadom in « Catawba 

 Rivor»? (WoLLK, Green, Atktnson). — Color frondis fortilis oli- 

 vaceo-brun(Uis aut nigrescens. Cortex bi-tristratosus. 



SuhyPM. II. Sacheria (Sirod.) Hans^-. Prodr. I, p. 21 (iif, secMo), Afkins. Leman. 

 U. St. p. 221. 



Thallus (chantransiaiformis) pI(U'umque fugax parco(|uo ramosus, 

 ssepius piligerus; frondos cylindracese aut setacea^, ut plurimum ra- 

 mosa^, rarius siinplices; axis centralis nudus; tul)i I.itoralos aut pla- 

 centarii initio 4; rami inforioros fasoiculi filamontnrum sjiorigiMiornm 

 c coUuIis elongato-cylindracois coinpositi. 



Rami carpogoniales (soc. Schmitz) 3-4- (rarius 7-)coIIuIaros, more 

 simplices. 



