434. C, utriculata Boott. 
Subplurieulmis; rbizomate brevissimo stolonifero; cul- 
mo 11/,—2!/, pedali strieto crasso r. vahdo inferne spon- 
gioso, trigono superne acutangulo scabro; vaginis herbaceis; 
foliis firmis culmo sublongioribus viridibus v. glaucescen- 
tibus latis longe angustatis carinato-planis basi complica- 
tis marginibus serrulatis, 5—3 din. lat, eulmoque septato- 
nodulosis; spieulis maseulis 3—4, rarius 2—5, remotis sed 
contiguis gracilibus elongatis rufis v. fuscis 21, —3 poll. 
long. lineam eirc. latis; foemineis 3—2—5 contiguis eras- 
sts flavo-viridulis, superioribus sessilibus, inferioribus pe- 
duneulatis, subexacte eylindrieis obtusis densifloris 3—1'f, 
poll. long. (maturis) ud 5'/, lin. crassis, superioribus apice 
interdum masculis; bracteis foliaceis evaginatis, inferiori- 
bus eulmum longe superantibus; squamis difformibus, mas- 
eulis byalino-membranaceis oblongo-lanceolatis acutis fla- 
vidis margine albidis, foemineis /ineart-oblongis acuminatis 
apice scabriuseulis; utrieulis densiss. dispositis divergen- 
tibus squama longioribus multoque latioribus membranaceo- 
rigiduhs stramineo-virentibus v. lutescentibus nitidulis in- 
fiatis ovato-orbiculatis abrupte breviter rostratis 3 lin. 
cire. long. 1), lin. lat., v. ovalibus subsensim longiuseule 
rostratis aut oblongo-lanceolatis 21, —22/, lin. longis vix 
lineam latis, nervosis subtiliss, striolatis v. celluloso- punc- 
tatis breviter bicuspidatis v. bidentatis; car. parva perlaxe 
inelusa abbreviato-obovata ima basi attenuata triangula 
angulis prominentibus, punctulata pallida, in stylum eon- 
eolorem validum eurvatum attenuata. 
C. utrieulata Boott in Hook. Fl. Bor. Amer. 2. 221 
(1840). Boott, II. 14. t, 39. — C. ampullacea A. Gray 
olim in sched. — C. ampullacea var. utrieulata auetor. 
