189 
#. Digyna; humilior saepe (3—9 pollie.) ae rigidior, 
foliis angustis plicato-carinatis, spieulis magis approzima- 
tis, foemineis breviter pedunculatis saepe crassioribus 
eylindraceo-oblongis; utrieulis compressis plano-convexis 
saepiss. evidenter plurinervatis; car. compresso-biconvexa; 
stigm. 2. 
C. trinervis Desgl. in Loiseleur Fi. Gall. p. 731. — 
Drej. Symb. 20. t. 7. — Boott, 159, t. 520, 521. — C. 
acuta b. nervosa G. F. W. Meyer Fl. Hanov. 
America septentr. Novo-Mexico. Norvegia. Germa- 
nia. Helvetia. Istria.. Gallia. Hungaria. Sieilia. His- 
pania. Lusitania. Taurus. Persia. Afghanistan (Griffith, 
no. 6089). 
308. C. setigera Don. 
Rhizomate elongato stolonifero fuseo; eulmis singulis 
v. pluribus faseieulatis 1—1!/, ped. alt. graeilibus obtus- 
angulis laevibus v. apicem versus seabridis, basi vaginis 
efoliatis membranaceis mox fissis purpurascenti-ferrugi- 
neis obtectis; foliis confertis eu/mo longioribus frmis per- 
longe angustato-acuminatis planis, marginibus scabris 
subrevolutis, dorso asperis, 1-—-2, raro ad 4 lin. lat.; spi- 
eulis S—4 brunnescenti-ferrugineis, superioribus 4—1 
masculis contiguis sessilibus linearibus 1---1/; poll. long. 
1—1'/, lin. lat., reliquis 3—5 androgynis pl. m. exserte 
peduneculatis eylindraceis, apice satis attenuatis, densiflo- 
ris 11,—1 poll. long. 2—2!/, lin. lat., superioribus conti- 
guis, infima plerumque distante saepiss. perlonge pedun- 
eulata; bracteis foliaceis eulmo multo longioribus, inferiori- 
bus longe vaginatis; squamis conformibus membranaceis 
stramineo - ferrugineis v. brunnescentibus, interdum dis- 
