MONOCOTYLEDONS. JUNCE/E. JwiCllS. 179 



Witli 1 or more cells ; ovules solitary, pendulous. Pericarp 

 capsular or nucanientaceous. Seeds inverted. Emhrjjo lenti- 

 cular, within the base of the copious albuvien. — Herbs or un- 

 der-shnibs. Leaves simple, narrow, or none. Culms naked, or, 

 more usually, with sheaths slit on one side. Flowers generally 

 monoecious or dioecious, in spikes or heads and separated by 

 scales or Iracteas. Br. 



1. ERIOCAULON. 



Plowers collected into a compact scaly head, monoecious. Barren 



Jloxuers in the disk. Perianth 4-cleftj the two inner segments 



united nearly to their sUmmit. Slant. 4 — 6. Fertile Fl. in the 



circumference. Perianth single, deeply 4-partite. Si7/le 1. 



Stigmas 2— 3. Cops. 2— 3-lobed, 2— 3-celled. Ce//v 1 -seeded. 



1. E. septangulare, scape striated longer than the cellular com- 

 pressed ensiform leaves, head of flowers globose, its ext. scales 

 without flowers glabrous, the interior ones as well as the peri- 

 anths ciliato-pilose at the extremity, stam. 4. p. 270. — Lakes 

 in Skye. 



Order IV. JUNCE^. Jms. 



Perianth 6-partite, siibglumaceous. Stam. 6, inserted into the 

 base of the segments, or sometimes 3, and then opposite the 

 outer segments. Ovary superior,! — 3-ceIled, 1 — many-seeded, 

 or 1-celled and 3-seeded. Style 1. -S/Z^jwa^ usually 3, some- 

 times 1 . Pericarp capsular, with 3 valves bearing the dissepi- 

 ment in the middle, rarely closed and by abortion 1 -seeded. 

 Eiyihryo cylindrical, at the base of a hard fleshy or cartilaginous 

 albumen. Br. In conspicuous herbs with small flowers, which 

 are often brown, rarely petaloid. Leaves grassy, sometimes 

 wanting. 



1. JUNCUS. 



Perianth 6-partite, glumaceous. Stam. G. Caps. 3-celled, 3- 

 valved; valves bearing the partitions down the middle, to which 

 the numerous seeds are fixed. {Leaves rounded, rarely plane, 

 glabrous.) 



* Leaves none (Jlowers all lateral) . 



\,J. arcticus, scapes smooth (soft), heads of flowers compact 

 nearly sessile, leaves of the perianth ovato-lanceolate acute ri- 

 gid rather shorter than the broadly obovate capsule, p. 104. 

 Sea-shore, rare. 



2. J. glaucus, scape deeply striated (rigid), panicle very much 

 branched erect, leaves of the perianth lanceolate subulate mem- 

 branous longer than the elliptical capsule, p. 105.—- /^< p^s- 

 ttires. 



[M 2] 



