JuncUS.] JUNCACE.E. 513 



yet observed this plant, associated with it and J. conglumeratus, appearing to 

 myself to be a hybrid between these two rushes ; rare ? Fl. July, August. !(.. 



W. Med. — On the S. side of Parkhurst forest, about Hedge Corner, observed 

 there by Mr. Borrer in 1847. It grows by the side of the road (Newport and 

 Yarmouth), associated with J. glaucus, J. effusus and J. conglomeratus, 1848. 



I must own to experiencing a degree of difficulty in at all times distinguishing 

 this plant from /. glaucus and J. effusus, at first sight at least. Excepting when 

 in fruit, its resemblance to some of the greener stemmed states of J. glaucus ren- 

 ders its detection less easy. 



5. J. glaucus, Sibth. Hard Rush. Stems leafless deeply and 

 finely sulcato-striate rigid, pith (always ?) interrupted, panicle 

 loose compound erect, segments of the perianth subulate lanceo- 

 late nearly equal about the length of the elliptical-oblong mucro- 

 nate capsule. E. B. t. 665. Br. Fl. p. 447. Host. Gram. Aust. 

 iii. 54, t. 81. 



Tn poor wet sandy or heathy pastures, moist waste ground, by roadsides, and 

 on commons; frequent. i^V. July. i^r. September. Zf. 



E.Med. — Plentiful in the meadow within the walls of Quarr abbey. At 

 Springfield. Niton, in a meadow below Little Buddle'farm, in great plenty. 

 Plentiful near Ashey farm, along the Ryde road. 



W. Med. — Abundant along the S. side of Parlihurst forest, as near Hedge Cor- 

 ner, in company with J. effusus, J. diffusus and J. conglomeratus. Abundant by 

 the shore just beyond Norton, on the way to Colwell. 



Root moderately creeping, tough and woody, yellowish within, emitting many 

 palish downy fibres. Stems densely tufted, about 2 feet high, more slender (?) 

 than in J. effusus, terete, hard, tough and rigid, erect or somewhat arcuate at the 

 summit when in seed, finely and deeply sulcato-striate, with a distinct glaucous 

 hue of variable intensity, filled with a white slender pith, which is continuous or 

 nearly so at the base, but interrupted by numerous cells for the remainder of its 

 length ; sheathed at bottom with deep brown or purplish black highly polished 

 scales, and continued for several inches beyond the panicle to a very gradually 

 tapering rigid point. Panicle lateral, diffuse, decompound (but less so than in J. 

 effusus ?), the branches longer, (?) erect. Capsules reddish brown or blackish, 

 polished, elliptic-oblong, obtuse or acute, mucronate, bluntly trigonate, about the 

 length of the erect perianth-segments, occasionally a little longer or shorter than 

 these. Seeds numerous, yellowish brown and pellucid, roundish oblong or coni- 

 cal, very obtuse, blackish at the smaller end, which is crested with a prolongation 

 of the close, wrinkled, truncate testa. 



*** Stems leafy. Leaves rounded or subcompressed, and distinctly jointed inter- 

 nally. Panicle terminal. Flowers aggregated or fascicled. 



6. J. acutiflorus, Ehrh. Sharp-flowered Jointed Rush. " Stem 

 and leaves subcompressed, panicle very compound pyramidal, 

 clusters 5 — 6 flowered, leaflets of the perianth unequal lanceolate 

 very acute nearly as long as the narrow-ovate subacuminate (pale 

 brown) capsule." — 5r. i^Z. p. 449. E.B.t.2U3. J. articula- 

 tus, E. B. t. 338. J. adscendens, Host. Gram. Aust. iii. 58, t. 87. 



On boggy heaths and in wet clayey ground; frequent. Fl. June — August. Tf.. 



7. J. lamprocarpus, Ehrh. Shining -fruited Jointed Rush. 

 " Stem ascending and as well as the leaves compressed, panicle 

 repeatedly compound erect or somewhat spreading, clusters 4 — 6 

 or 8-flowered, sepals equal the ends obtuse shorter than the acute 



3 u 



