OF NpRTH AMERICA ^ * 



931. Vernonia brevifolia Raf. stem groov- 

 ed pubusc(mt below smooth above, leaves short 

 oblong, margm subentire revolute, very sca- 

 brous above, pubescent and glaucous beneath ; 

 flowers subuinbellate few, segments of perian- 

 the lanceolate acuminate squarrose — in Alaba- 

 ma near to V. balduini^ which has however 

 leaves ovate serrate, here they are oblong, 

 broader below, or subcuneate, narrow above 

 nearly lanceolate, only uncial ; flower in a irre- 

 gular umbel of about 1(/ flowers, naked, stem 

 bipedal or less. 



932. Vernoma CRiNiTA Raf. smooth, stem 

 grooved, leaves narrow lanceolate elongate with 

 remote obtuse teeth ; corymb foliose, perianthe 

 crinite by long lax subulate filiform segments — 

 in Louisiana and Arkanzas near streams a tall 

 sp. leaves 5 to inches long, only half inch 

 broad in the middle, acuminate at both ends 

 and sometimes falcate : flowers large perianthe 

 hemispherical multifl. segments nearly all equal 

 slender and forming a fringed cup as long as 

 florets. 



933. Makshalma spiralis Raf. smooth sub- 

 scapose, leaves radical linear lanceolate obtuse 

 uninerve, scape elongate spirahj grooved, pu- 

 bescent above, perianthe segments linear obtuse 

 smooth — in Arkanzas and West Louisiana found 

 by Binder, near to M. lanceolata, but quite dis- 

 tinct, leaves narrower 3 inches long, scape twist- 

 ed as some Xurides (not so in M. lanceolata) pe- 

 dal, flower large incarnate. 



934. Marshallia TENuiFOLiARaf. stem sim- 

 ple virgate grooved, naked and pubescent above, 

 leaves scattered all narrow linear elongate acute 

 perianthe segments linear acute pubescent — 

 found by Baldwin on the sea shores of Florida 



