Oedbr 155.— CYPERACEA 749 



TT 8. Pistillate spikes with enclosed or nearly enclosed peduncles. Porigynia 

 inostlj; inJlated, benkcd, angular -striate. Spikes often quite large, (r) 



r PciiL'yiiium pubescent, brownish, abruptly beaked Noa. 98, 99 * 



r Pei-igyniucn smooth, yellowisii, with a short, recurved beak Kos. 100, 101 



r Perigyni'"" smooth, inflated, with a long, straight beak, (s) 



a Spikes very sliort. — Whole plant yellowish green Nos. 102—104 



—Whole plant dark green or bright green Nos. 105, 106 



S Spikes oblong-cylindric, — very large, conic-rostrate , Nos. 107 — 109 



—middle size, very abruptly rostrate No. 110 



IT 9. Pistillate spikes with exserted peduncles. Perigynia 8-angled, scarce inflated, 

 not much beaked, and (as well as the glumes) more or less colored, (t) 

 t Leaves lanceolate or lancc-Iinear, 4 to 10' wide, (u) 



U Perigynium acuminate with a recurved point Nos. Ill — ^118 



U Perigyn. acute or obtuse, — Lvs. lanceolate, shorter than culms Kos. 114, 116 



— Lvs. lance-linear, long as culms Nos. 116, 117 



Leaves linear or setaceous (1 to 2" wide or less), (v) 



V Perigynia smooth and not rostrjite. (w) 



W Bracts all exceeding the— oblong, dense epikes Nos. 118, 119 



— slender, loose spikes Nos. 120, 121 



W Bracts shorter than the spikes or culm, (x) 



X Leaves setaceous and all radical. Glumes white No. 122 



X Leaves linear.— Spikes blackish. White Mts No. 123 



— Spikes tawny Nos, 124, 125 



— Spikes green. — Gl. (mostly) obtuse. ..Nos. 126,127 

 — Glumes muci'onate Nos. 128, 129 



V Perigynia smooth (scabrous in No. 185), rostrate, (y) 



y Bracts leafy, exceeding the stem and fruit Nos. 180—188 



y Bracts not exceeding the stem or fruit, (z) 



a Spikes linear, slender, quite loose-flowered Nos. 183, 184 



Z Spikes cylindrical, rather close, 3 in number .Nos. 185, 186 



Z Spikes oblong, 6 to OO-fld.— Culm4 to 6' high, very delicate.. No. 137 

 —Culm 1 to 2f high Nos. 138-140 



V Perigynia hairy, — sterile spike linear, slender Nos. 141, 142 



— sterile spike oval-oblong Nos. 143,144 



V 10. Pistillate spikes with peduncles (lung or short), scarcely sheathed at all. (aa) 



aa Spikes all erect. — Perigynia not rostrate or but slightly so Nos. 145—147 



—Perigynia rostrate, the orifice entire, or nearly so Nos. 148, 149 



— Perig. rostrate (few), spindle-shaped, 2-toothed No, 150 



aa Spikes (the pistillate) soon mostly nodding, (bb) 



fab Perigynia not rostrate.—Spikes ovoid, thick , Nos. 151 — 168 



— Spikes linear or cylindric...': Nos. 154, 165 



bb Perigynia rostrate,— the beak short, scarcely 2-toothed No. (161) 156 



— the beak long and 2-parted Nos. 157— J59 



' H* Staminate spikes usualhj 2 or more. Perigynia rostrate, (cc) 

 CO Perigynia clothed with wool, hairs or mealiness, (dd) 



dd Perigynia loug-beaked, hispid-pubescent, 2-cleI^t, green No. 160 



dd Perigynia short-beaked, — mealy glaucous, chocolate-colored... No. 161 



—densely woolly, greenish Nos. 163, 163 



— hispid j)ubescent, brown Nos. 164, 165 



CO Perigynia glabrous (or merely scabrous in No. 172). (ee) 



ee Spikes (s) on oxserted peduncles, (ff) / 



ff Glumes dark brownish purple. Bracts shorter than culm No. 366 



f£ Glumes greenish or tawny, or yellowish, (gg) 



gg Perigynium tapering into very short beaks Nos. 167, 168 



gg Perigynium long-beaked, horizontal or reflexed Nos. 169, 170 



gg Perigynium long-beaked, ascending. — Beak conical. .Nos. 171, 173 



—Beak cylindric. Nos. 173, 174 

 ee spikes ( 9 ) on sheathed, or very short peduncles, or sessile, (hh) 

 hh. Spikes cylindrical, length more than thrice diam. (kk) 



kk Perigynium short-beaked or beakless. Kankaqnatics.No3.175, 176 



kk Perigynium decidedly beaked.— Glumes awned Nos. 177,178 



— Glumes lanceolate. Nos. 179, 180 

 h.h Spikes oblong or oval, turgid, length not thrice the diam. (nn) 



nn 9 Spikes 2 or 3 in number.- Beak cylindric Nos. 181, 183 



—Beak conical No. 183 



nn $ Spikes 1 or 2,— pedunculate. Beaks cylindric. . . .Nos. 184, 185 

 —sessile, small. Beaks conical No. 18C 



L Stigmas 2-— Acheniiun double convex, 



1 "C. capitata L. Spike capitate or nearly globous, 5 at the summit; ft*, (peri- 

 gynium) roundish-ovate, close compressed, convex-concave, glabrous, aoutiah, 

 longer than the ovate and rather obtuse glume ; lvs. slender. — Heights of the 

 White Mts. (Bobbins). 



2 C. gynocrates "Wormesk. , 5 Spike oblong, rather loose-flowered; perigyTi/imn 



