

M^ 



5edi 



ma 





adix 



^iclosti 



, ^i^ddie of ,; 



!£ 



i'en'anji 



f^e to/, COB- 

 -XXXYffl, 



E Jm. 



Limb of Ik 

 tabid, rarely 



)usly 3-9-) 

 the axis d 



tire or 



lAquati"' 



av 



[fid. 



plo# 



StratioteS.'] LXXXVIII. HYDEOCIIAIllDACEiE. 



423 



sessile.— ^ame: ava, Uke^ and x^tpig, an abbreviation of the" 

 name of the next genus. 



-/lowered 



4 in a 



verticil, linear- or oval-oblong minutely serrulate, spatha of 

 the fertile flower many times longer than the ovary, stio-mas 



'' '-"^ Bab. — ^ 1.. . ^,. .. - . ^ o 



A 



ligulate. tiab. in Ann. Nat 



Nuttallii Planch. Udora Canadensis Nutt 



Ponds, ditches, canals, and streams. Leigh Park, near Havant, 

 Hants ; reservoirs at Watford and Foxton Locks on the Junction 

 canal, Leicestershire ; River Leen, and adjoining meadows, near 

 Nottingham; In the Trent and canal near Burton on Trent, Stafford- 

 shire. In the Whiteadder, Berwickshire, from Bluestaneford to 

 Gainslaw (a distance of nearly 12 miles); Pond in the Edinburgh 

 Botanic Garden (not planted there). Dublin, l^. 7.— 10.— Althouo-h 

 we only give the above stations, being those in which it first attracted 

 notice, this plant is very generally diffused. It is now generally 

 acknowledged to be a' purely American species, but the mode in 

 which it arrived in this country remams as great a mystery as ever. 

 All the stations in the centre of England may possibly be connected 

 with each other, but cannot be with the Berwickshire one ; the other 

 localities are subject to suspicion. The stigmas are usually 3, although 

 2 were observed by Mr. Babington; Mr. Kirk finds 3, but only 2 

 sterile stamens; these are occasional aberrations, there being 3 of 

 each, unless when an accidental abortion has taken place. The 

 stigmas are only emarginate in the British plant, but have a lon^i- 

 tudmal line indicating a tendency to be bifid after being fertilized. 

 The sterile plant has not been observed in tliis country. 



2. Hydrocharis Linn. 



Dioecious. — Barren ji. 

 2 — 3-flowered. 



Frog-bit. 



about 



Spatha 2-leaved, shortly stalked, 

 Perianth 6-partite. Stam. 6 — 12, in 

 about 3 rows, connected at the base, surrounting 3 imperfect 

 styles.—Fertilefl. on a long stalk, within the radical 1-leaved 

 spatha. Tube of the perianth scarcely longer than the ovary - 

 Ivmh 6-cleft. Sterile stamens 6. Stigmas 6, oblong-cuneate', 

 mild the segments divaricating. Fruit coriaceous, roundish, 

 ^-celled, many-seeded.— Leaves stalked, reniform. ~ ^ amed 

 tvom jjdojp, water, and x^P^^^, elegance, being showy aquatic 



1. H. Morsus RdncB L. {common Frog-hit.) E. B. t. 808. 



Ditches and ponds in England and Ireland, ^oi wild in Scotland. 



4. 7, 8. — Floating, and sending down long radicles from its ho^ 



Jizontal stems. Leaves petioled, reniform, entire. Flowers subum- 



ellate, large, white, delicate, arising from pellucid membranous 



Bi 



3. Stratiotes Linn. Water- Soldier. 



i«cious. Spatha 2-leaved, stalked.— -Ban-ew Jl. numerous 



