Less prominently beaked, short-toothed, sharply 3-angled 69–74
Wholly beakless and pointless 58, 59, 63, 78, 79
Very small, black and shining; leaves capillary 80
Culm and leaves thinly pubescent 64
Perigynium more or less pointed or beaked.
Spikes spreading or drooping 51–53, 68–70, 75
Spikes erect 60–62, 65–68, 71–78
[*] 1. Physocárpæ.—[+] 1. Pauciflòræ.
1. C. pauciflòra, Lightf. (Pl. 5, fig. 1–16.) Very slender but erect, 6–18´ high; leaves very narrow, much shorter than the culm; staminate and pistillate flowers 2–5; perigynium at maturity easily detached.—Cold sphagnum swamps, New Eng. to N. Penn. and Minn.; local. (Eu.)
[*] 1.—[+] 2. Lupulìnæ.