Jaucus.^ HEXANDRIA — MONOGYNIA. 145 



** Leaves none. Barren scapes resembling leaves. Panicle 

 terminal. Flowers aggregated. 



6. J. tnaritimtis, Sm. (lesser sharp Sea Rush); barren scapes 

 and outer bracteas pungent, panicle very compound, clusters 

 4 — 8-flo\vered, leaflets of the perianth equal lanceolate acute as 

 long as the elliptical mucronated capsule. E. Bot. t. 1725. — J. 

 acutus, 3- L. 



Salt-marshes in various parts of England, but not frequent. St An- 

 drew's, Scotland. Coast of Ayrshire. Kingstown and other places in 

 Ireland. Fl. Aug. 1^.— In this and the following, the outer bractea, 

 or portion that rises above the panicle, is broad and membranous at the 

 base, and less like a continuation of the scape than in the species of 

 the preceding division. 



7. J. acutus, L. (great sharp Sea Rush); barren scapes and 

 outer bracteas pungent, panicle very compound mostly compact, 

 clusters 2 — 4-flowered, leaflets of the perianth equal, interior 

 ones with a broad membranous margin at the apex shorter than 

 the broadly ovate suddenly acuminated capsule. E. Bot. t. 1614. 



Sandy sea-shores, principallv on the south and west of England and 

 Wales. Norfolk. Wicklow and Arklow, Ireland. FL July. 1/:.— 

 Larger and stouter than the last, especially tlie capsules, which are of 

 considerable size, much protruded, rich brown and glossy. 



*** Stems leafy. Leaves rounded or subcompressed and dis- 

 tinctly jointed internally. Panicle terminal. Floxoers aggregated 

 or fascicled. 



8. J. acutiflorics, Ehrh. (shaip-flowered jointed Rush); leaves 

 subcompressed, panicle very compound pyramidal, clusters 5 — G- 

 flowered, leaflets of the perianth unequal lanceolate very acute 

 nearly as long as the narrow- ovate subacurainate capsule. E. 

 Bot. t. 2143.— J. arliculatus, E. Bot. t. 238. 



Bogs, very common. Fl. June — Aug. 1|. — 1 — 2 feet high, erect. 

 Leaves 3 — 4 on a stem, distinctly nodoso-articulate when dry. Panicle 

 diffuse, in fruit spreading. Flowers several together, greenish-brown. 

 General bracteas short, membranaceous, scarcely leafy. Capsules 

 pale-coloured. 



9. .J. lamjjocdrpus, Ehrh. (shining -fruited jointed Rush); stem 

 ascending and as well as the leaves compressed, panicle com- 

 pound spreading, clusters 4 — 6- or 8-flowered, leaflets of the 

 perianth equal leather obtuse shorter than the acute triquetrous 

 oblongo-lanceolate capsule. E. Bot. t. 2143 — ,5. panicles less 

 branched, clusters of more numerous flowers. J. polycejikalus, 

 Don, MSS. — J. nigritellus, Don, E. Bot. Suppl. t. 2643. 



Boggy grounds and watery places, frequent. Fl. July, Aug. 1^. — 

 Very similar to the last ; but with \d.x^(tx flowers, and deep brown shin- 

 ing capsules. The var. jS. has more xmmGxom jluwers in each cluster 

 or head, sharper leaflets to the perianth, pale capsules, and it seems 

 almost to unite J. acutijiorus with J. lampocarpus. 



10. J. obtusijlorus, Ehrh. {blunt-flowered jointed Rush); stem 

 and leaves erect rounded, panicle very compound spreading and 



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