316 
JUNCACEjE ALISMACEjE. 
ceolate-acuminate, filaments much shorter than the anthers, caps, 
obtuse apiculate, " seeds reniform" with a basal appendage. — 
E. B. 672. St. 77- 5.— St. 4—6 in. high. Anth. linear, about 
6 times as long as the filaments. — Pastures and dry places. P. 
IV. V. 
5. L. multiflora (Lej.); 1. linear hairy, panicle of numerous 
ovate dense sessile or stalked clusters, segments of perianth nar- 
rowly-lanceolate strongly acuminate, filaments about as long as 
the anthers, caps, obtuse apiculate, seeds oblong with a basal ap- 
pendage.— E. B. S. 2718. St. 77- 7. L. congesta Sm.— St. 8—12 
in. high. Filaments more than half as long as the rather short 
anth. and often equalling them. Panicle with the clusters nearly 
all stalked, or (/3. congesta, L. congesta, Lej., L. campestrisfi. Hook.) 
contracted into a rounded lobed head. I introduce this as a 
species in order to draw attention to the character which ap- 
pears to distinguish it from L. campestris, that its constancy 
may be ascertained. As far as my observation has extended I 
have found it to be constant and therefore hold the species to 
be distinct. — Moorish and turfy places. P. VI. 
6. L. spicata (DC.) ; 1. narrow slightly channeled hairy, 
panicle an oblong lobed nodding spike, clusters shorter than their 
bracts, segments of perianth narrow acuminate bristle-pointed, 
filaments half as long as the anthers, caps, obtuse apiculate, 
seeds oblong with a very slight basal appendage. — E. B. 1176. 
St. 3 — 12 in. high. L. short, slender. Spike i — 1 in. long, 
nodding. Partial bracts tapering, bristle-pointed. — Highland 
mountainsi. P. VII. 
7. L. arcuata (Hook.) ; 1. channeled slightly hairy, paniclesub- 
umbellate of few 3 — 5-flowered clusters on long drooping peduncles, 
segments of perianth broadly-lanceolate bristle-pointed, fila- 
ments equalling the anthers, caps, roundish-ovate, " seeds ob- 
long obtuse or apiculate scarcely appendaged below." — E. B. S. 
2688. — St. slender 2 — 5 in. long. L. short, curved, narrowly 
linear. Panicle of 3 — 5 small clusters, 1 nearly sessile, the 
others on longdeflexed stalks. — Highest summits of Cairngorum 
and Sutherland mountains. P. VII. VIII. S. 
Order LXXXVII. ALISMACEiE. 
Perianth free, C-parted, coloured. Stam. 6 — 9 or more. 
Ovaries 3 — 6 or numerous. Styles and stigmas the same. Caps, 
not bursting, 1- or many-seeded. Embryo straight or curved, 
albumen 0. 
Suborder I. ALISMOIDE^E. 
Three inner segments of the perianth petaloid. Seeds 1 — 2 in 
