5 TO 



ALISMACE.r, 



carp-is 3, Ci, or more, mostly free, superior, i- or more-seeded ; 

 fniit of achenes or follirles. 



1, AhisMA. -—Leaves erect or iloatini; ; flowers solitary, or in 

 whorls, perfect; ouitr periaiilh-leaves green [Slemiens 6; carpels 

 numerous, free, i-seeded, indehiscent. 



2. Saoittaria. — Leaves erect, arrowTgliaped ; flmvers in whorls, 

 imperfect ; otherwise as in Alisnia. 



3. I J A _M A s 6 N I u M . — 

 L.eaves floating ; flowers in 

 whorls, perfect ; carpels 

 6 — 10, united at tlie base, 

 I — 2-seeded, dehiscent ; 

 otherwise as m Alisiiia. 



4. BuTOMUR. — Leaves 

 erect ; flowers m an umbel, 

 perfect ; perianlh-leavcs all 

 coloured ; slameiis 9 from 

 the branching of the 3 

 J)uter ; carpels 6, united at 

 "the base, many-seeded, 

 dehiscent, 



I. Ali'sm \ (Water-Plan- 

 tain). — Aquatic plants 

 with fibrous roots : erect 

 leaves ; flowers in whorls, 

 •perfect ; uuier periniilli- 

 Jeavcs green ; stamens 6 ; 

 carpels numerous, free, 

 1 - seeded, indehiscent. 

 ((Name, the Greeli nanre 

 of the plant, of doubtful 

 :;ctymo]og^■.) 



I. ,i. Planldi^o-aqtidiiea 

 .(( ircit \\"ater-l'lantal]i'). — 

 A stout, herbaceous plant, 

 with large, long-stalWed, radical leaves, o\"ate- 

 lanceolate, 5 — 7-ribbed, like those of a I'laiitaiJt : and a tall, erect, 

 iriuch-branched panicle of whorled ^lowers, the inner perianth-leaves 

 of which are very delicale, \\'hilc or pale lilac, and soon fall off; 

 carpels 20 — 30 in a ring. — Margins od rivers, lakes, and ])onds ; 

 common. --Id. (une — .\ugusl. Perennial. 



2. A. rannnciihi'iilis ( I .esser W'nier-Plantain). — Much smaller 



Al.iSMA TLAK'T (r,n-,Ml 



2—3 feet hiu'h 



it Water- Plan 



:„). 



than the 



with linear lanceolate, 3-ribbed /cuiifi', some of which 



