Cyperaceae. 



151 



JUN'CUS COMPRES'SUS (77). Round-fruited rush. 6—8. Stems 



(1428) erect | — 2 ft. tufted not branched, leaves slender channelled above, 



(1429) panicles terminal. Moist pastures. 



LUZULA. 

 hairs, perianth chaffy, 



567 



ovary I -celled 

 L. sylvatica. 



L. pilosa. 

 L. campestris. 



II.- 



Leaves hairy with long white 

 3-seeded. 



Stem more than i foot high, 



Stem less than i foot high, 



567 Leaves slightly hairy, 



567 Leaves very hairy, 



LU'ZULASYLVAT'ICA(ios). Great Hairy Wood-Rush. 5—6. Stems 

 {1450) few I — 2 ft,, leaves mostly radical \ — i ft. long \ in. broad with scanty 

 hairs, cyme large compound. Woods. 



LU'ZULA PILO'SA (106). Broad-leaved Hairy Wood-Rush. 5—6. 

 (1449) Stems many 6 — 12 in. high, leaves \ — \ in. broad sparingly hairy, 

 flowers dark brown in a little-branched lax cyme. Woods. 



LU'ZULA CAMPES'TRIS (105). Field Wood-Rush. 4—6. Stems 

 (1453, 1454) 4 — 12 in., leaves very hairy, flowers in dense clusters. Woods. 



ORDER Z^, — Cyperaceae. 



Grass or rush-like herbs with solid often triangular stems, leaves very 

 slender with entire sheaths. Flowers perfect or with stamens or pistil only, 

 each flower in the axil of a single scale or glume, glumes imbricated in spike- 

 lets. Perianth none or of 3 — 6 hypogynous scales. Stamens usually 3. Ovary 

 I -celled often surrounded by bristles. Style i. Stigmas 2 — 3 papillose. 

 Flowers perfect, 568 



Flowers imperfect, . Carex I. 



568 Glumes in 2 ranks, Schoenus 11. 



568 Glumes imbricated on all sides, 569 



569 Bristles absent, Isolepis III. 



569 Bristles present, 570 



570 Bristles of ripe fruit included in glumes, 571 

 570 Bristles of ripe fruit much longer than the 



glumes, Eriophorum IV, 



571 Spikelet solitary terminal many-flowered, . . , Eleocharis V. 

 571 Spikelets many, 572 



572 Spikelets alternate forming a spike, . . Blysmus VI. 



572 Spikelets in lateral bundles, .... Scirpus VII. 



572 Spikelets in terminal panicles, . . Rhynchospora VIIL 

 O 



