FRKS II- WATER ALG^E O F T II E U N I T E D ST A T E 8. 139 



liiH-ar. Empty frond minutely punctate; f. v. narrow elliptic, with several inflated protubo- 

 ranct -, -IK!.-, -c.u,. _\ diluted, rounded; tr. v. with Tour iuflutiuns at sides and one at each 

 i-ii.l. (A.) 



circularr, H VSSAL. 



E. mediocre, dianu>tro duplo longins; semiccllnlia trilobis (at non semper distigcte), ad basin 

 versus tuinoribus quinm aut pluribus in scries duas v. tres alternantcs aut Bingulo ccntruli, 

 quatcrnis scmicircularitcr onlinatis instrurtis, lobifl basalibus sinuato-emargiiiuti*), subito in 

 lubum polurem upicc puulluui dilutatiim attetiuatitt ; cytioilermate Kubtilitcr ]>unrtuto. (K.) 



,S'y;i. A 1 , rirciiltirr, IlASSAL, Froli- Water Algae, p. 383. 



Hub. Providence, Rhode Island ; Builej. 



" Frond about twice as long as broad, tapering upwards into a neck, end not dilated, iU notch 

 an acute incision. Fmpty frond, segments with five basal inflations, four in a half circle 

 around the fifth and two others at the extremity." Archer. 



(Far. It. 1 1 Is 1 1 



Scniicclliila tumoribus minirais 11 in scries tres alternantcs ordinal is. 

 Hub. Saco Lake, New Hampshire ; (F. W. Lewis) Wood. 



K. Jenneri, nobis. Frond scarcely twice as long as broad ; segments 3-lobed, basal portions 

 8ulx|iiadrate, cmarginate at the sides; end lobe, its notch linear. Empty frond punctate, 

 segments with several inflations arranged in alternate lines. (Archer.) 



E. iitftigne, HASSALL. 



F. sulijrrnrili-. dia metro dnplo-triplove longius, a vcrtice fere qnadratum, lateribus concavis, 

 angulis rotundutis; semicellulis basi inflatis, integris, e basi subreniformi in collum clongatuin 

 chins attcmiutis, lobo polar! dilatato bifido truucato ; cytiodermatc subtiliter puuctato. (U.) 



Long. 0.0039" 0.0043". Lat. max. 0.0023C'', (R.) 

 ,S'y;i. E. insigne, HASSALL, Fresh- Water Algae, p. 21. 

 y/,,6._Florida ; Rhode Island ; Bailey. 



Frond rather more than twice as long as broad ; segments inflated at base, sides entire, without 

 lateral tubercles, and tapering into a long slender neck; end lobe dilated, its notch linear. 

 Kinpty frond minutely punctate ; f. T. segments with two inflations at the base ; f. v. narrower, 

 gradually tapering to the end, which is considerably dilated ; projections rounded, with a 

 sinus between ; tr. T. subquadratc, slightly concave at sides, with a rounded lobe at the 

 centre of each end ; e. v. end lobe with a sinus at opposite external margins, angles thus 

 protruded into four divergent rounded lobelets. (A ) 



!:. RalfNii, RABENH. 



K. mediocre, leviter comprcs.snm, mcdio inflatum, diametro duplo circitcr longius; semicellulis 

 pyramidalibus, c basi ventricosa in lobum polarem rectum truncatum sinuato-attenuatis ; 

 cytiodermate subtiliter punctato, punctis in lincos rectos ordinatis. (R.) 



Syn. E. ansatum, EHR. etanctores. RABENHOBST, Flora Europ. Algarum, Sect III. p. 184. 

 E. Ralfaii, RABENIIOBST, Flora Europ. Algarum, Sect. III. p. 184. 



Hab. South Carolina ; Rhode Island ; Bailey. White Mountains, New Hampshire (F. W. 

 Lewis). 



"K. anttnliim, Ehrb. Frond about twice as long aa broad; segments inflated at the base, taper- 

 ing upwards without siuuations into a neck, end not dilated, rounded, its notch linear. Empty 



