CYPERACEAE (SEDGE FAMILY) 



243 



487. C. lax., 

 v. blanda, 



and aggregated about the inconspicuous staminate 

 spike, the lowest usually long-exserted. (Var. stri- 

 atula Carey.) Vt. and e. Mass, to Ont., and southw. 

 FIG. 487. 



Var. Iatif61ia Boott. Rather low, 2-6 dm. high ; 

 culms winged; leaves 1.5-4 cm. broad; staminate 

 spike sessile or very nearly so, hidden by the pistil- 

 late; pistillate spikes cylindric and loose, 1.5-3 cm. 

 long, the upper one or two contiguous ; bracts very 

 broad. ( C. albursina Sheldon. ) Deep rich woods, 

 w. Que. and Vt. to Ont., and southw. FIG. 488. 



Var. leptonervia Fer- 

 nald. Slender, 1.5-7 din. 

 high ; leaves 0.5-1 cm. 

 broad ; pistillate spikes 

 linear-cylindric, loosely 

 flowered, 1-2.5 cm. long, 

 the 2 or 3 upper crowded 

 at the base of the staminate, the lower 

 remote ; perigynia oblong-fusiform, 

 faintly nerved or nerveless. Nfd. to 

 Ont., s. to n. N. E., N. Y., and Mich. ; 488. C. lax., 

 and in the mts. to N. C. FIG. 489. v. latifolia. 



128. C. Hitchcockiana Dewey. 

 Erect, 3-7 dm. high; leaves 3-7 mm. broad; spikes 

 2-4, all more or less peduncled, very loosely few- 

 flowered, erect, 1-2.5 cm. long, the bracts elongate 

 and leafy ; perigynia triangular-ovoid, many-striate, 

 4-5 mm. long, the strong beak prominently oblique, 

 shorter than the scales. Rich woods, Vt. to Ont., 

 s. to Ky. and Mo. May-July. FIG. 490. 



129. C. oligocarpa Schkuhr. Diffuse, 1-5 dm. high ; leaves 

 2-4.5 mm. wide ; bracts elongate, spreading ; staminate spike sessile or stalked ; 

 pistillate spikes 2-4, scattered, stalked or the uppermost sessile, loosely 2-8- 

 flowered, erect, 0.5-1.5 cm. long ; perigynia 3.5-4 mm. long, 

 hard, finely impressed-nerved, abruptly contracted into a con- 

 f\ /CL\ spicuous mostly oblique beak, the orifice entire ; scales very 

 I 1 /Kl%l loosely spreading, longer than the perigynia. Dry woods and 

 I wfll copses, Vt. to Ont., la., and southw. May-July. FIG. 491. 



130. C. katahdin6nsis Fernald. Densely 

 caespitose ; leaves 1-2.5 dm. long, 3-4 mm. 

 broad, with the similar bracts much (2-6 

 times) overtopping the low (1-6 cm. high} 

 rough-angled culms ; pistillate spikes 3 or 4, 

 approximate, or the lowest remote, short- 

 pediceled, 8-14 mm. long, 5-lQ-Jlowered ; 

 staminate spike 5-8 mm. long, generally 

 hidden among the pistillate ; perigynia ellip- 

 soid, 3-4 mm. long, many-nerved, beakless, 

 mostly exceeding the whitish green-awned 

 scales. Gravelly shore of a pond, Mt. 

 Katahdin, Me. ; rocky bank, Lake St. John, 



491. C. oligocarpa. Que. (Brainerd). July, Aug. FIG. 492. 492 c katahdine n s i s . 



131. C. conoidea Schkuhr. Slender but 



strict, 1.5-7 dm. high ; staminate spike long -peduncled or rarely nearly sessile; 

 pistillate spikes 2-3, scattered, short-stalked or the upper one sessile (the 

 lowest frequently very long-stalked), narrowly ellipsoid, 0.7-2.5 cm. long, rattier 

 closely flowered, erect ; perigynia oblong-conical, 3-4 mm. long, impressed- 

 nerved, gradually narrowed to a point, the orifice entire ; scales loosely spread- 

 ing and rough-awned, equaling or exceeding the perigynia. Moist grassy 



490. C. Hitch- 

 9. C. lax., cockiana. 

 v. lept. 



