108 
sursum margine carinaque serratis 2°/,-—-4'/, lin. lat., supe- 
rioribus culmo longioribus; spica composita v. decompo- 
sita panieuliformi oblongo -lanceolata v. elongato - oblonga, 
laxa, v. continua v. basi interrapta, 2'1/,——4'/,, interdum 
ad 8 poll. longa, medio ?,—1'/, poll. lata; spieis partia- 
libus v. brevibus sessilibus v. elongatis subpedunculatis, 
inferioribus pl. m. remotis; bracteis viridulis Iimeuri- seta- 
ceis et capillaribus, v. brevibus v. inferieribus elongatis, 
spieulis numerosis confertis parvis ovato-oblongis apice 
masculis; squamis hyalino- membranaceis ovatis acufis sub- 
mueronatis sordide stramineis v. lutescentibus; utrieulis 
primo erectis dein sguarroso- patentibus squama multo lon- 
gioribus evidenter pedicellatis 3 Fin. eirc. Tongis ovatis, 
basi truncatis, infima basi tardius spongioso valde incrassatis, 
sensim in rostrum perlongum lineare angustum acute biden: 
tatum latere dorsali profunde fissum attenuatis, plano-con- 
vexis, dorso subtiliter multinervatis ferrugineo - stramineis, 
marginibus haud alatis inferne leviter incurvatis superne 
setuloso - ciliatis. 
©. Crus Corvi Sehuttlew. — Kunze, 128 et 160. t. 32, 
42. — Boott, 2. t. 65. — C. Halei Dew. — C. sieaeformis 
Boott antea. — Drumm. coll. no. 434. — Sartwell, no. 17. 
America septentr. 
++ Stylus trifidus. 
88. C. iongebracteata Steud. 
Rhizomate elongato obliquo duro pnennam ceygneam 
crasso vaginis brevibus lanceolatis fusco -purpureis tuni- 
eato; culmo tenui strieto subpedali firmo obtuse triangu- 
lari laeyi basi folioso; foliis eonfertis culmo brevioribus 
