1200 ERIOCAULON. [CLASS XXI. ORDER VI, 
ORDER VI. 
HEXAND'RIA. 6 STaAMENs, 
—— 
GENUS XVI. ERIOCAU'LON.—Linn. Pipewort. 
Nat. Ord. Restia'cEm. Juss. 
Grn. Cuar. Flowers collected into a compact scaly head, each scale 
single flowered, except the outer ones, which are barren, and 
forming an involucre. Barren flowers in the centre perianth 
single, unequally four to six cleft. Stamens four to six. Fertile 
flowers in the ray, perianth single, deeply four-partite. Style 
one. Stigmas two or three. Capsules two or three lobed, two or 
three celled, each cell single seeded.—Name from <¢or, wool ; 
and xavAcs, the stem ; in allusion to the downy stem or scapes 
of some of the species. 
1. EH. septangula're, With. (Fig. 1457.) Jointed Pipe-wort. Scape 
erect, striated, sheathed at the base; leaves subulate, compressed, 
smooth, shorter than the scape; flowers four-cleft, hairy at the ex- 
tremities, as well as the scales; stamens four ; capsule two celled. 
English Botany, t. 733.—English Flora, vol. iv. p. 189.—Hooker, 
British Flora, ed. 4. vol. i. p. 346.—Lindley, Synopsis, p. 272. 
Root with creeping stems, and long white radicles, pellucid, and 
curiously jointed, with numerous transverse partitions. Leaves 
radical, from one to three inches long, beautifully cellular, numerous, 
smooth, awl-shaped, with a rather broad base, channeled. Scape 
solitary, four to six inches long, erect, cellular, enveloped at the base 
with a tubular sheath, striated, with about seven angles, smooth, 
naked above, and terminating in a small roundish dense head of 
compact flowers, white, with a purplish hue. lowers “ each with an 
obovate membranous concave scale, nearly as long as itself. Two 
outer segments of the perianth duplicato-carinate, purplish, two inner 
white, of the central sterile flowers united for a great proportion of the 
length, so as to be two lipped at the extremity, each lip bearing a 
stamen, and above that a black sessile gland, and on each side be- 
tween the two lips a stamen, in the centre between these are two 
black stalked glands (abortive styles?). In the fertile flowers the 
four segments are almost equally divided to their base, the inner 
having a black sessile gland at the extremity. stil shortly stipitate. 
Germen of two globose lobes. Style short. Stigmas two, long, 
subulate.” 
Habitat.—Lakes in mountainous countries; rare. In Skye, Coll, 
and a few of the neighbouring islands of the Hebrides. Cunnamare, 
North-west of Ireland; frequent. 
Perennial ; flowering in August. 
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