380 
.Tuncacese. 
119. Juncaceae. 
597. iuncus. Rush. YI, 81. Ill, 6. 
1. Stem leafless (Is only rad. or entirely wanting) . 2 
— Stem leafy (gen. few, often only 1 leaf) . . 10 
2. Anthela (apparently) lateral. 3 
— FIs placed at the top of the stem ... 8 
3. Anthela many-fld ....... 1 
— Anthela only 3 - 7 - fid ...... 7 
4. Rad. sheaths yellowish brown, dull. Stas 3. (Stems bright 
green with continuous pith) ..... 5 
— Rad. sheaths blackish brown, shining. Stas 6 . 6‘ 
5. Style placed on a lump rising from the depression in 
the capsule. Stem (in the living pi.) finely streaked. 
Anthela gen. very compact (almost globular). —Marshy 
places; distrib. 6 . . conglomeratus L. 2215. 
— Style placed in the depression of the capsule. Stem 
(when fresh) quite smooth (finely streaked after drying). 
Anthela laxer; less often (v. compactus) compact.—As 
the last. 6 . . . . . effusus L. 2216. 
6. Stem glaucous, deeply streaked, with an interrupted 
pith (slenderer and more tenacious than in the lastj. 
J. inflexus L.?— As the last; everywhere. 6 
glaucus Ehrh. 2217. 
— Stem bright green, the pith not or scarcely interrupted. 
J. effusus-glaucus!—As the last; rare. 6 
* diffusus Hopp. 2218. 
7 (3). Anthela placed almost in the middle of the stem. 
Perianth pale green or light brown.—Damp places of 
the Alp. and subalp. 6 . . . filiformis L. 2219. 
— Anthela placed in the upper part of the stem. Perianth 
blackish brown.—Alp.; G. W. (Upper Engadine; Saas, 
Zermatt). 7 .... arcticus Willd. 2220. 
8 (2). Ann. pi. Divisions of the perianth finely acuminate, 
longer than the capsule.—Damp, sandy places; W. B. 
J. (Gombs, Seewyl, Bonfol). 6 . capitatus Weig. 2221. 
— Perenn. pis. Divisions of the perianth acute or obtuse, 
as long as, or shorter than, the capsule . . f) 
9. FIs 3 (2—4) together in an head surrounded by brown 
bracts. Stem slender, 8—12 cm. — Damp pasturages of 
the Alp. 7.triglumis L. 2222. 
— FIs numerous, in a'loose anthela. Stem stiff, 20—30 cm. 
— Alp.; only on the St. Gothard and the Isenaualp in 
the Ormonds, Yaud. 7 . . . squarrosus L. 2223. 
10(1). Ls with a laciniate-c i liate ligule at the mouth 
of the sheaths. (Stem filiform, bearing 1—3 fls, fls with 
2—3 very long bracts much exceeding the fls). Type 
of J. trijidus ........ 11 
