en the Britifh Species of Carex. 175 
It may however be difficult to keep it always diftinét from the 
two following, which have been confidered as varieties of it. The 
capfule is a good guide to diftinguifh it from C. extenfa, being in 
C. fava oblong, with a long taper point, and in C. exten/a ovate 
and acute. But the capfule is no guide in its feparation from 
C. fulva, being apparently the fame. C. fava has always three fe- 
male fpikes, and C. fu/va as conftantly two—Then C. flava has 
its bracteze divaricated ; C. fulva upright, particularly the loweft, 
The divifion of the apex of the capfule has always appeared to me 
confiant in C. fulva, but is by no means fo in C. flava. The ha- 
bit of thefe two plants feems very different. And the female {pikes 
in C, fulva are always acute, and never round. 
25 CAREX EXTENSA. Tas. 2r. fig 7. 
E vaginis breviffimis æquantibus foliolo fub-reflexo, fpicis con- 
fertis; foemincis fub-rotundis, capfulis ovatis acutis, 
. Buddle, Hort. Sic. p. 30. n. ro. 
Carex flava, Var. B. Hudf. Flora Anglica, p. 407. 
Habitat in paluftribus, propè Harwich—On the marfhy part 
of Braunton Burrows in Devonfhire. Junio. 
Radix perennis. Folia radicalia fub-angufta, culmo bre- 
J. viora (qux autem culmi bafin amplectuntur, eundem fæpe æquant, 
fepe fuperant) fummitatem vertus marginibus carinaque afperiuf- 
culis.  Culmus erectus, pedalis & ultra, triqueter, angulis obtufiuf- 
culis, glabris. Spice una (rarius dux) mafcula; duæ, fæpe tres, 
foeminez. Spica mafcula linearis, femuncialis & ultra (fi duz ad- 
fint altera quintuplo brevior) terminalis; fquamis fuicis, nervo 
dorfali viridi, oblongis, fub-obtufis. Spice fœminez fæpiès ad 
bafin 
