CTPEBACEJE.       (SEDGE    FAMILY.)  535

12.  C.  canescens,  L.,  var.  vitilis,  Cany.  Spikes  5-7,  small,  scat-
tered, roundish,  6  -  10-flowered  ;  perigynia  ovate,  plano-convex,  short  and  rough-
beaked,  spreading  and  tawny  at  maturity,  rather  longer  than  the  ovate  acute
white  seale.     (C.  sphs&rostachya,  Ave.)  —  High  mountains  of  North  Carolina,

and  northward.  —  Culms  weak,  and  slender,  10'-  15'  high,  longer  than  the  nar-
row and  tender  leaves.
13.  C.  scopai'ia,  Sehk.  Spikes  6-8,  approximate,  ovate  or  oblong,  many-
flowered  ;  perigynia  oblong-lanceolate,  narrowly  margined,  acute  at  the  base,  ta-
pering  into  a  long  2-cleft  rough  beak,  longer  than  the  ovate-lanceolate  pointed
scale,  turning  light  brown  at  maturity.  —  Swamps,  South  Carolina,  and  north-
ward. —  Culms  l°-2°  high,  rough  above,  longer  than  the  narrow  leaves.
Var.  lagopodioides.  Spikes  10-15,  obovoid ;  perigynia  lanceolate,  re-
maining pale  green  at  maturity,  nearly  twice  as  long  as  the  rather  obtuse  scale.
(C.  lagopodioides,  Sehk.) — Mountains  of  North  Carolina,  and  northward. —
Culms  commonly  taller  than  the  preceding.
14.  C.  Straminea,  Sehk.  Spikes  3-6,  distinct,  ovoid;  perigynia  ovate
or  round-ovate,  broadly  winged,  abruptly  narrowed  into  a  short  2-eleft  beak,
somewhat  tawny  and  spreading  at  maturity,  longer  than  the  ovate-lanceolate
scale.
Var.  festucacea.  Spikes  6-8,  pale,  obovoid  or  somewhat  club-shaped,
scattered  ;  perigynia  ovate,  less  broadly  margined,  tapering  into  a  more  slender
beak,  erect  and  pale  green  at  maturity.  (C.  festucacea,  Sehk.  C.  fcenea,  Torr.,
<$•<:■,  a  form  with  more  rigid  culms,  and  more  crowded  and  glaucous  spikes.)  —
Swamps,  very  common.  —  Culms  1°-  2°  high.  Leaves  narrowly  linear,  shorter
than  the  culm.
