560 G. Kükenthal. 
26. 
Capitulum ovatum vel triangulare; utriculi latiores 
non ciliato-marginati . . . s . . nenne 
. Utrieuli membranacei non incrassati. . . . . . 
Utrieuli suberoso-incrassali. . . . 2 . . o 
. Culmus tereti-compressus incurvus; folia plicata non 
Į ; 
27. 
28. 
crassa; spica globoso-ovata, floribus 5 fere abscon- 
ditis; squamae late ovatae mucronatae . . . . .. 
Culmus obtuse triqueter; folia subteretia crassa; 
spica oblonga, (j parte conspicua; squamae ovato- 
lanceolatae acutae. . . . 2 . soon t 
Utrieuli coriacei marginati sed non alati. . . . .. 
Utrieuli membranacei ad margines alaeformiter in- 
erassal . . . 2 2 4 4 e e Hoo eot on m on on 
Spiculae compositae; utrieuli dorso tuberoso-convexi ; 
rostrum scabrum Æ incurvum . . . . 4. 
Utriculi dorso convexi; rostrum rectum , . . . .. 
Utrieuli parvuli 2 mm longi subspongiosi; spiculae 
saepe unisexuales. . . . . . um loeo on n 
Utrieuli longiores magis incrassati; spiculae semper 
androgynae . . . 
e . b o o o o o o t| o č o 
29. Culmus sursum scaber; spiculae compositae; utriculi 
30. 
31 
32. 
33. 
" 
34. 
ad basin et ad margines valde incrassati, basi rotun- 
dati vix stipitati in rostrum mediocre leviter biden- 
tatum attenuati, . . . .. lone 
Culmus laevis; spiculae simplices; utriculi ad basin 
minus incrassati rotundati conspicue stipitati in rostrum 
longum profunde bidentatum attenuati 
Culmus compresso-triqueter superne scaber; folia 
3—4 mm lata; utriculi 4—41/ mm longi ovati basi 
in stipitem attenuati longe bidentato-rostrati . . . . 
Culmus  erassissimus laevis; folia 4—5 mm lata; 
utriculi 3 mm longi globoso-ovati late alati basi sub- 
cordato-rotundati stipitati . . 
(46.) Spica e spiculis paucis simplicibus vel rarius 
subeompositis formata. . . . .. Denen 
Spica e spiculis numerosis paniculatim composita. . 
Spieulae inferiores subbasilares; utrieuli pyriformes 
trigoni pubescentes; stigmata 3. . . . . 2 .. . 
Spiculae laterales ad terminalem approximatae; utri- 
culi plano-convexi; stigmata 2... . . 2 2 2 . . 
Rhizoma laxe caespitosum; spiculae clavatae; squa- 
mae albescentes . "m nee 
Rhizoma dense caespitosum; spiculae vix clavatae; 
squamae fulvescentes . 
Spiculae graciles laxiflorae; squamae  lanceolatae 
longe acuminatae utriculos elipticos utrinque atte- 
nuatos multo superantes. . . . EM 
Spiculae erassae densiflorae; squamae ovato-lanceo- 
latae acuminatae cum utriculis late ovatis basi rotun- 
datis ferrugineo-striolatis aequilongae 
s> > LL . > 
C. incurva Lightf. 
C. melanocystis Desv. 
27. 
30. 
C. marcida Boott. 
28. 
C. Gayana Desv. 
39. 
C. macrorrhixa Böckeler. 
C. hypoleucos Desv. 
C. pyenostachya Desv. 
C. Kurlxiana Kükenthal. 
34. 
C. phalaroides Kunth. 
C. macella Kunth. 
C. pichinchensis 
(Kunth var. d 
C. brunnescens B 
Humb. e! 
ura Boot- 
öckeler. 
