188 AUT. HOT. 



1402, RH1ZAKENIA Raf. fructific. radi- 

 calis, scapo incurvato uniftoro, capsula akeni- 

 ibrmis monosperma globosa, apex stigmatifor-^ 

 mis lobato umbilicato perforate fol. radic. pe-* 

 tiol singular G. of the Rhizospermous family 

 near to 1'ilularia, Isoetes fyc. 



Rkizakenia ovata Raf. Hydrocharis cordi- 

 folia! Collins mpt. an. Nut? Ambrosinia ! alis- 

 moides Nut. mpt. repens glabra, petiolis elon- 

 gatis teretib. fol. ovatis acutis vix venosis, scapis 

 brevissimis recurvis, capsula pendula--in some 

 ponds from New England to Florida ? very lo- 

 cal and rare, petiols 3 to 6 inches, feaves uncial 

 not at all cordate base acute, veins paralel 

 transversal, scape 1 or 2 inches, capsule pisi- 

 form, t 



1403, HYDROCHARIS morsus L. O. Europe, 

 quite unlike the last in every thing. 



1404, ERIOCAULO.X longifolium Raf. fol. gra- 

 mineis longissimis pedalis latiusculis obtusis, 

 scapis fol. sepe breviorib. usque ad medium va- 

 ginatis, a pice contortis costatis, capit. depressis, 

 bract, ovatis acutis scariosis fulvis pubens 

 South New Jersey in swamps, leaves pedal, 

 scape slender rigid, heads small, fl. pale, 



1405, Erioc. callosum Raf. fol. gramineis 

 semipedalis latiusculis apice obt. callosis, scapis 

 fol. longior basi vaginatis contortis sulcatis, ca- 

 pit. depres?is, bract, subrot. acutis vel obt. ful- 

 vis glabris, ft. cinereis Alabama, leaves broad- 

 er at base, scape ultrapedal, heads small, fl. 

 cinereous. 



1406, Erioc. serotinum Walt. fol. sernipcd 

 angustis glaucescens, obt. scapis elongatis, basi 

 vaginatis, contortis sulcatis costatis, capit. glo- 

 bosis umbilicatis, bract, latovat. acum, vel lace- 

 ris prJabris New Jersev to Carol, blended with 



