176 MONOCOTYLEDONS. C'YPERACEiE. CaVeX. 



*-* Sterile and fertile flowers upon distinct spikes on the same culm, 



j- Sterile spikes mosthj single. 



+- Stigmas 3. 



16. C. pendula, sheaths elongated nearly equal to the flower- 

 stalks, fertile spikes cylindrical very long and drooping, fruit 

 ovate shortly acuminate bifid at the extremity closely imbri- 

 cated, leaves broad, p. 264. — IVoods and shady places. 



17. C. slrigosa, sheaths elongated equal to the flowerstalks, fer- 

 tile spikes slender filiform nearly erect, fruit ovato-lanceolate 

 nerved slightly recurved loosely imbricated, leaves rather broad. 

 p, 2Q4.— Woods. 



18. C. sylvat/ca, sheaths half as long as the flowerstalks, fertile 

 spikes filiform rather slender slightly drooping, fruit broadly 

 ovate much acuminated cleft at the point, leaves narrow. 

 p. 264. — IVoods. 



19. C. depaiiperata, sheaths much shorter than the flowerstalks, 

 fertile spikes erect remote very few-flowered, fruii large nearly 

 globose inflated terminating in a long beak bifid at the point. 

 p. 264. — IVoods, rare. 



20. C.Mielichoferi, sheaths about half as long as the flowerstalks, 

 fertile spikes i — 3 somewhat drooping, fruit scarcely longer 

 than the scale lax especially the lower ones with a short beak 

 bifid at the point, p. 265. — Mountains. 



21. C. capiUaris, common sheath half the length of the flower- 

 stalks, fertile spikes few-flowered lax drooping, fruit as long 

 as the ovate membranaceous deciduous scales oblongo-ovate 

 acuminate, p. 265. — Alps. 



22. C. llmosa, sheaths extremely short scarcely any, fertile spikes 

 oblongo-ovate pendulous, bracteas subsetaceous, scales acute 

 as long as the elliptico-roundish striated shortly mucronated 

 fruit, p. 265. — Bogs in the mountains. 



23. C. rarijlora, sheaths very short almost none, fertile spikes 

 narrow oblong very few-flowered lax pendulous, bracteas sub- 

 setaceous, scales acute longer and broader than the ovate some- 

 what acute striated fruit, p. 265. — yllps. 



24. C. PseiidO'Cyperus, sheaths scarcely any (except, sometimes, 

 lo the lowermost bractea), fertile spikes upon long footstalks 

 cylindrical pendulous, bracteas very leafy, scales setaceous, fruit 

 oblong very much acuminated cloven at the tips striated. p. 265. 

 — Sides of lakes. 



25. C.ustulata, sheaths elongated shorter than the flowerstalks, 

 fertile spikes pendulous, bracteas nearly leafless, fruit elliptical 

 ovate beaked (black) bifid at the point, p. 266. — Alps. 



26. C. atrata, sheaths scarcely any, fertile spikes pedunculated 



