305 
NOTES ON THE STRUCTURE, THE OCCURRENCE IN 
LANCASHIRE, AND THE SOURCE OF ORIGIN, OF 
NAIAS GRAMINEA Deum, var. DELILEI Maenvs. 
By Cuartes Bamey, F.L.S. 
(Puates 249—252.) 
Page Page 
I. Introduction . B05; XU. The Pollen <... 1.5 Bae 
II, The Genus, and its divisions 306| XIII. Fertilization. . . . . 321 
Tit. Synonymy of the Plant. . 306| XIV. The Fruit. . . se 
oer es Bie os 2 es ae XV. The Roots. 324 
- The Leaves. . . . . . 309|/ XVI. The Lancashire Loc cality . 325 
VI. The Leaf-spines . . . . 310| XVII. Geographical Distribution 327 
VII. The Leaf-sheath . . . . 312| XVIII. Its on source of 
GE 
27 
IX, nflorescence . aL. XIX AHi holog’ ical peculiarity 329 
X. a Pistilliferous Flower . 317 XX. tema of the 
XI. The Antheriferous Flower . 319 331 
I,—Intropuction, 
Naias graminea Del., Plate 249, fig. 1, and Chara ee Gmel. 
were first reported as occurring in a natural state in England at 
the Meeting of the British Association at Southport in Seren om 
188 Their addition to the flora of South Lancashire on 
i t 
fi 
exploration of the Ashton-under-Lyne district in acqui the 
necessary material for the compilation of a fi and flor 
by Mr. J. R. Byrom, of Ashton, is printed on pp. 541-548 of the 
‘ Bevo of the Fifty-third Meeting of the British Association.’ 
Few portions = Great Britain are so well re botanically, 
systematic Stuen tiation of so w orked a district as Ashton has 
brought to light many novelties, bouton two, if not three, plants 
not previously known to be Britis se who know what a 
head and Byrom, it was finally determined by Mr. H. N. Ridley, of 
the British’ Museum , to be Naias graminea Del. or Caulinia 
nensis Pollini. Subsequently Dr. Magnus, of Berlin, has given it 
Journat or Borany.—Vou. 22. [Ocrozer, 1884.] x 
