870 
longis v. brevioribus supra tenniter Anerriis ibique strigosis; 
vaginis 's—1-pollic, antice tenui-membranaceis pallidis 
Serrugineo-punctulatis, ore rotundatis; involucri foliis 3—5 
patentibus, inferioribus umbellam 5-— 9-radiatam aequantibus 
v. subduplo superantibus; radiis indivisis ereeto- pateutibus 
setaceis, exterioribus 2 — 3"; poll. long.; ochreis longiusculis 
ore obliquis; spienlis in spieas subovales v. oblongas 4 —1 
poll. long. et supra, '»—1 poll, latas Zare confertis paten- 
tissimis reflexisve linearibus acuminatis primo compressis dein 
articulato-subflexuosis 5—6 lin. long. semilineam vix latis 
5-—-3-floris; squamis remotis adpressis, superioribus apice 
patulis, oblongo-ellipticis ohtusis muticis membranaceis, la- 
teribus 6—8-nervatis stramineo -lutescentibus v. sanguineo- 
fascescentibus, carina viridi tenuiter nervata, marginibus mem- 
branaceis pallidioribus; squamis penultimis vacuis subaequa- 
libus, infima parum breviore acuminata; caryopsi syuama eirc. 
%, breviore elongata lineari evidenter incurvata obtuse 
triangulari vix apiculata densiss. punctulata rufescente; stylo 
longe persistente elongato validulo ferrugineo ad medium us- 
que fisso; filamentis persistentibus elongatis. 
C. refractus Engelm. in sched. — Steud. 1. e. p. 47, 
sub. nom. C. retrofracti deseripsit. 
Missouri, 
298. ©. havanensis Willd. 
Glauco-virens,. Badice fihrosa; culmis plurimis dense 
eaespitosis filiformibus strickis rigidis 'a —1-pedal. obsolete 
angulatis hasin versus leviter inerassatam vaginis aliquot 
(3—4) brevibus arcte vestitis; vagina superiore longiore se- 
mitrancate in laminam hrevem lineari-lanceolatam carinato- 
eanaliculatam erassiuseulam producta, secunda brevissime fo- 
liaceo -apicata; umbella depauperata spurie laterali biradiata, 
