Eii-Floridcae, Lemaneaceie. 35 



Chcetangiacefr. — Goniniol)Iiistus sistens caespituluin confertuih 

 coiivexuin ;iut, fjuasi uinlttilhitiin oxpansuin aut concavo-contortuin filo- 

 ruin articulatoruin collulas tcrininales iii sporas transinutatas pra3l)en- 

 tiurn. Gonlinoi>l;istus in th;illo innnersus,senii)or iiericarpio plerumque 

 solido instriictus. Sporan^i;i sie[)ius cruciatim aut zon;itim divisa. 



Gclidiaccd'. — Goninioblastus sistens caBspituluin filorum rainoso- 

 ruin late expansorum ssepe cum cellulis th;illi propriis (quasi auxilia- 

 ribus)conlluentiuin; apices ramorum filorum horum fertilium in hy- 

 inenium confluontes, ex quo sporse sinjj^ulge (raro breve catenatse) 

 ;icropoto inodo oriuntur. Sporangia cruciatim, zonatim aut triangule 

 divis;i. 



Fam. V. LEMANEACEiE (Ag.) Rabenh. 



Lemaneacece Rahenli. [1868] Fl. Eiir. Al^iar. III, ]). 410, Haiisg. Prod. I, p. 18, 

 Scliiiiil/. iii l-]ii-l. & l'f,uit,l Natiii-I. l'lkui/AMif;uiulicii 141 (1896), p. 324. 



Lanani.ca: .\'^. |18>8| Sp. Alg;u-. II, I, [k 1, Kuetz. [1843] Pliyc. geiiei*. [>. 146, 

 Harv. [1858J Ner. hor. Aiiicr. II, p. 63. 



Leinaneic Reichb. [1837] Handh. ii. 136, Eiidl. [1843] Spl. Hl, p. 29. 



Lemane&c Decne [1842] in Ann. Sc. Nat., Bot., 2 sei-., XVII, p. 327. 



Lemanklce Lindl. [1847] Veg. Kin^xd. p. 22. 



Lnnanidea; Gray [1821] Arrang. hrit,. pl. I, p. 288. 



Frons frnctifora p;irenchymatica, tereti-filiformis, saepe plus minus 

 nodoso-moniliformis, simplex vel ramosa, nonnunquam quasi stipi- 

 tata, nodulis plerumque papillarum corona instructis. Procarpia im- 

 mersa; spermatangia superficialia; carposporae catenulatae, fascicula- 

 tiin ;xgti:regata3, germinando statum ch:mtransiaeformem dein novas fron- 

 dos hasi radicantes ot individua propria sistentes .emittentem evol- 

 ventes. Sporangi;i nulla. 



Obs. Algaj rivulares aut tluviatiles, prsecipue in aquis frigidis 

 rapidequo iluentibus inliabitantos, caespitosae, duriusculae, obscure 

 olivacese aut violascenti-nigne, exsiccatione plerumque nigrae. 



Conspectus generum. 



I. 4'lialliis pleriiiuque simiilex, iKxloso-artieuliitus. 



L.emanea Bory. — Nodiili cuni verticillis filorum cortic;ilium alternanfces. 



II. Thallus ahuiide lateraliter rumosus. 



Ttiomeya Harv. — Thallus moniliformi-constrictus. 

 Sterrocladia Schmitz. — Thallus ubique eximie teres. 



