396 JUNCACEAE. 
40. Juncus diffusissimus Buckley. Diffuse Rush. (Fig. 958.) 
Juncus hana Buckley, Proc. Acad. Phila. 1862: 
g. 1862. 
Plant 1°-2° high. Stems few in a tuft, from a 
short-branched inconspicuous rootstock, erect, slen- 
der, terete or slightly compressed, 2-4-leaved; blades 
4/-8’ long, 4’/-3(’’ thick; inflorescence diffusely 
branched, widely spreading, 4’-8’ high and broad, 
its lowest bract with a blade either obsolete or some- 
times nearly as long as the panicle; heads 3-12-flow- 
ered; perianth 11¢’/-134’’ long, its parts subulate, | 
equal; stamens half to two-thirds as long as the 
perianth; anthers shorter than the filaments; cap- 
sule narrowly linear-lanceolate in outline, 2’/-234 ’” 
long, acute to obtuse at the apex, with a short tip, 
3-sided, light brown, I-celled; seed oblong to ob- 
ovoid, }//-4’’ long, acute at the base, abruptly 
tipped, reticulate in about 16 rows, finely cross-lined. 
Southeastern Kansas to Mississippi and Texas. 
2. JUNCOIDES Adans. Fam. Pl. 2:47. 1763. 
; [Luzuna DC. FI. Fr. 3: 158. 1805. ] 
Perennial plants, with herbage either glabrous or sparingly webbed, stems leaf-bearing, 
leaf-sheaths with united margins, and leaf-blades grass-like. Inflorescence umbelloid, pan- 
iculate, or corymbose, often congested; flowers always bracteolate, the bractlets usually 
lacerate or denticulate; stamens 6 in our species; ovary I-celled, its 3 ovules with basal in- 
sertion; seeds 3, indistinctly reticulate, sometimes carunculate at base or apex, but not 
distinctly tailed. [Greek, meaning like /umcus.] 
About 4o species, widely distributed, mostly flowering in spring. 
Inflorescence umbelloid, 1 or 2 flowers on each of its branches. 1. J. pilosum, 
Inflorescence theoretically paniculate, the flowers often crowded in spikelike clusters. ~ 
Outer perianth-parts shorter than the inner; introduced species. 2. J. nemorosum. 
Perianth-parts equal or nearly so; native species. 
Flowers 1-3 together, on the branches of an open panicle. 3. J. parviflorum. 
Flowers crowded into one or more thick spikes or spike-like clusters. 
Inflorescence nodding. 4. J. spicatum. 
Inflorescence erect or spreading, or its individual branches rarely nodding. 
Inflorescence of 1-3 spike-like or capitate flower-clusters, or the leaf-blades sharp- 
pointed. 
Inflorescence crowded into a single cluster; leaves flat, usually with a blunt 
apex. 5. J. nivale. 
Inflorescence in 1-4 clusters; leaves narrowed above, involute-channeled, apex 
very sharp. 6. J. hyperboreum. 
Inflorescence of 2-12 spike-like or capitate clusters; leaf-blades with blunt points. 
7. J. campestre. 
1. Juncoides pildsum (L,.) Kuntze. Hairy Wood-rush. (Fig. 959.) 
Juncus pilosus I. Sp. Pl. 329. 1753. 
Luzula pilosa Willd. Enum. P1. 393. _ 1809. 
Juncoides pilosum Kuntze, Rev. Gen. Pl. 725. 1891. 
Tufted, often somewhat stoloniferous. Stems erect, 
2-4-leaved, 14°-1° high; leaf-blades 114//-4’’ wide, 
flat, slightly webbed, especially when young, acumin- 
ate into a blunt almost gland-like point; stem leaves 
with similar but successively shorter blades; inflores- 
cence an umbelloid flower-cluster, with a bract 5//-12/’ 
high, the filiform pedicels equal or nearly so, I- 
flowered or sometimes 2-flowered; perianth 14 //—-134/’ 
long, its parts triangular-ovate, acuminate, brown 
with hyaline margins, about twice as long as the 
toothed bractlets; capsule about one-fourth exceeding 
the perianth, its valves ovate, acuminate; seed about 
4’ long, its body about 1’’ in length, provided at the 
summit with a conspicuous hooked caruncle. 
_ New Brunswick to Alaska, south to New York, Mich- 
igan and Oregon, and in the Alleghanies to North Caro- 
lina. Also in Europe and Asia. 
