4Pi Eu-Floridese, Lemaneaceae, Tnonieya. 



Amer. Acad. of Arts and scienc. vol. XXV (1890), p. 53-68 cum 

 1 tab. !, Schmitz et Hauptfl. in Engl. ife Prantl Pflanzenfam. 141, 

 p. 327, Baileya Kuetz. [1857] Tab. Phyc. VII, p. 35, t. 87, f. 3, 

 non Baileija Gray [1818]. — Krons erecta, rigidiuscula, monopo- 

 diahter ramosa, caespitosa; rami moniliforuutcr constricto-articulati; 

 cellula apicalis conoidea pauflo altior quam latior, celluUe sub apice 

 gradatim septi transversalis ope exorientes discoideie (10-12 *:* 2-3), 

 passim lateraliter protrudentes, papillis his septo tangentiali a 

 cellula matre discretis demumque ranmlos efficientibus. Fructificatio 

 (autuinnalis) monoica h. e. antheridia et procarpia in eodem indi- 

 viduo evoluta, at in diversis thalli regionibus obvenientia; rami 

 antheridiophori in nodulis plerumque numerosi, inferne simplices, 

 superne ciespitulum ramulorum brevium gerentes. Rami carpogo- 

 nici in axillis filorum corticalium, spiraliter undulatorum, e latere 

 convexo ramulorum brcvium pleurogenorum exorientes. 



1. Tuomeya fluviatilis Harv. Ner, bor. amer. 111, p. (34, Setchell 1. c. !, 73 

 Baileya americana Kuetz Tab. Phyc. Vll, t. 87, f. 111. — niia- 

 racteres generis. 



Hab. ad saxa, rarius ad plantas aquaticas in rivulis rapide fluen- 

 tibus in Alabama (Tuomey), prope « Frederiksburg » in Virginia 

 (J. W. Bailey), pr. «Bridgeport, Connecticut» (Is. Holden), ad 

 * Mount Desert Island, Maine» (Is. Holden), pr. « Oxford, Conne- 

 cticut» (E. B. Harger); ad «Sharon, New England» (A. P. D. Piguet). 

 — Frons ciBspitosa, vix semidecimetrum altitudine aequans, anibitu 

 pyramidalis aut irregulariter conica, rigidiuscula, haud collabescens, 

 sicca habitum quasi Ahnfeltim plicatce ostendens et chartae vix 

 adhisrens. E basi frondis discoidea, 5 uiillim. diauL metiente stipes 

 surgit validus mox in ramos numeros(^s elongatos abiens, soepius 2 

 millim. crassus; ramificatio monopodialis onmino irregularis, ramis 

 alternis secundatisve, sparsis confertisve, elongatis, subflexuosis, 5- 

 6-ies ramulosis. Axilke plerumque patentes ; rami ultimi numerosi, 

 pro ratione breves, plus nunus sulmlati. 



Species a genere removenda. 



2. Tuomeya grandis Wolle Freshw. Alg. of Un. Stat. p. 53, t. 66, 

 f. 2-8, Entothrijo grandis Wolle in Bull. Torrey Bot. Club 1887, 

 Novemb., p. 17, Rabenh. Alg. Eur. n. 2538 est Lemanea grandi^ 

 (WoIIe) Atkinson. 



