AUSM A . — SAGITTAKI A. 
413 
Suborder I. Alismoidece 
1. Xus't/ia Linn. em. Jnss. Water- Plantain. 
1. A. Flantdgo-aquatica (L.) ; fl.-stalk panicled with whorled 
compound branches, carp, ranged in a circle compressed blunt 
obovate, style beloic the fop of inner edc/e of carp., 1. cordate-ovate 
or lanceolate. — E. B. 837. Ji. vii. t. 57. — L. all radical, on long 
stalks. Submersed 1. linear. Fl. -stalks 2 — 3 ft. high. Fl. pale 
rose-colour. Sep. ovate-oblong, styles twice as long as ovary. — 
/3. A. lanceolata (With.) ; 1. lanceolate narrowed below. Sfi- E. 
B. 1438. Sep. ovate, styles eciualling the ovary. Perhaps 
distinct.— By water. P. VII. VIII. E. S. I. 
2. A. ranunculdides (L.); ti. -stalks umbellate, carjj. angular 
acute forming a globose squamose head, stjile terminal, 1. linear- 
lanceolate acute. — E. B. 326. R. vii. t. 55. — L. all radical, on 
long stalks. Fl.-stalks from 3 to 24 in. long, ending in 1 or 2 
umbellate whorls of simple peduncles. Fl. pale purple. — /i. A. 
repens (Dav.) ; stolonifei'ous, producing 1. roots and fl. at the 
nodes, fl. larger. E. B. S. 2722.— Turfy bogs. /3. By lakes in 
Wales and Ireland. P. YI. VII. ' E. S. I. 
3. A. mitans (L.) ; st. floating and rooting leafy, peduncles 
simple from the joinings of the stem, carp, striate beaked, floating 
1. stalked oblong blunt, radical leafless petioles broadly subu- 
late. — E. B. 775. R. vii. t. 54. Elisma Buchen. — St. slender, 
often very long. Root-petioles in small tufts. Fl. rather 
large, white with a yellow spot. — Lakes, rare. P. VIII. E. 
2. Damaso'nium Mill. em. Jkss. (Actinocarjiiis R. Br.) 
1. D. Alis'ma (Mill.) ; stalks with 1 — 3 whorls of fl., carp, 
subulate compressed opening longitudinally, 1. cordate-oblong. 
— E. B. 1615. D. stellatum (Thuill.). — L. all radical, floating, 
on long stalks, 5-veined. Pet. white. Carp, large ; with 2 
stalked seeds, one from the lower angle erect, one from the 
upper horizontal. — Pond find ditches, rare. P. YI. YII. E. 
3. Sagitta'kia Linn. Arrowhead. . 
1. .S^. sa<,ittif6lia (L.); aerial 1. arrowshaped with lanceolate 
straight lobes, fl.-stalk simple, 11. whorled. — E. B. 84. R. vii. 
t. 53. — -Stoloniferous : each runner ending in a tuber. The 1. 
that rise above the water are remarkably arrowshaped, with the 
3 parts nearly equal. The submersed leafless petioles are linear. 
Fl. white.— Ditches and rivers. P. VIII. E. I. 
