CARET. 365 



* * Spike barren at the top. Stigmas 2. 



3. C. puUcaris (L.) ; half of spike barren, fr. remote at length 

 deflexed oblong-lanceolate compressed, nut oblong-obovate plane- 

 convex.— E. B. 1051. Schk. A. 3. H. a. 3. R. 195.— St. 

 slender, 6 — 12 in. or more in height, erect, smooth. L. slender, 

 erect. Glumes deciduous. Fr. dark brown. — Bogs. P. VI. 



*** Spike barren at the top. Stigmas 3. 



4. C. rupestris (All.); half of spike barren,//-, obovcte tri- 

 gonous with a very short beak adpressed scarcely longer than 

 the persistent gl., " nut obovate acutely triquetrous." — E. B. S. 



,2814. H. b. 4. R. 198.— Stoloniferous. St. 3-6 in. high, 

 triquetrous, rough upwards. L. flat, ending in a tortuous rough 

 slender triangular point. Gl. fuscous. Fr. paler. — Lofty moun- 

 tains. P. VII. S. 



!>. C. pauciflora (Ligbtf.); 1—3 terminal Jl. barren, fr. 2 — 4 

 lanceolate-subulate terete patent or reflexed longer than the 

 deciduous gl., nut linear-oblong trigonous. — E. B. 2041. Schk. 

 A. 4. H. h. 1. R. 196. — Stoloniferous. St. usually about 5 

 inches high, slender. L. 2 or 3, much shorter than the stem. 

 Fr. pale yellow.— Bogs in the north. P. VI. VII. E. S. 



ii. Homostachya. Spikelets barren at one or both ends in a 

 compound continuous or interrupted spike. Nut plane-convex 

 or compressed. Stigmas 2. 



t Spikelets barren at the top. — X Rhizome far-creeping. 



6. C. incurva (Lightf.) ; spikelets in a roundish head, fr. 

 inflated broadly ovate acuminate-rostrate, beak split externallv, 

 nut obovate, st. smooth about equalling the leaves. — E. B. 927. 

 Schk. Hh. 95. H. a. 5. R. 199.— St. 2—3 in high, usually 

 recurved so as to bring the large head down to the ground. 

 Beak of fr. usually rather scabrous. — Sandy shores of the north. 

 P. VI. S. 



7. C. divisa (Huds.) ; spikelets in a somewhat ovate head,/r. 

 plane-convex ovate many- veined, beak acutely bifid with finely 

 serrated edges, nut broadly oblong, gl. with an excurrent rib, 

 lowermost bract leaflike, st. roughish at the top. — E. B. 1096. 



St. slender, a foot high. Fr. veined on both sides. Spike 



often interrupted below. — Near the sea on the southern and 

 eastern coasts. P. V. VI. E. I.?S.? 



8. C. disticha (Huds.) ; spikelets in an oblong interrupted 

 spike upper and lower ones fertile intermediate barren, fr. ovate- 



