TYPHACE. il 
base; but in this state I have never seen it produce flowers: but 
Dr. Grenier states in the “ Flore de France ” that the fruit and styles 
and elongated stigmas distinguish it from the following species. 
* Reichenbach has figured the fruiting head of 8. ramosum as that of 
S. simplex, and has fallen into a similar error in his description in 
*Tcon. Fl. Germ. and Helv.” vol. xi. p. 3. 
Unbranched Bur-reed. 
French, Rubanier simple. German, Hinfache Igelskolbe. 
SPECIES HI—SPARGANIUM AFFINE. Schneiz. 
Prats MCCCLXXXIX. 
Reich. Ic. Fl. Germ. et Helv. Vol. IX. Tabs. CCCXXIV. CCCCXVII. Fig. 925. 
Billot, Fl. Gall. et Germ. Exsice. No. 854. 
S. natans, “Jinn.” Bab. Man. Brit. Bot. ed. vi. p. 358. Hook. & Arn. Brit. FI. 
ed. viii. p. 474. Gren. & Godr. Fl. de Fr. Vol. II. p. 337 (non Fries., test. C.J. 
Hartmann, Skand. FI. ed. ix. p. 218). 
8. simplex, var. Benth. Handbk. Brit. Fl. ed. ii. p. 434. 
8. longifolium, Don. MS. (non Twrez.). 
Leaves linear, flaccid, always floating, none of them triangular at 
the base; stem-leaves with the sheaths rather long, somewhat 
inflated. Flowering stem floating, rather stout, flaccid, simple (very 
rarely branched), the apex rising out of the water only at the time 
of flowering. Flower-heads in a raceme. Female flower-heads 2 to 5, 
rarely 6, stalked, terminating the peduncles of the raceme, the upper 
ones subsessile along the rachis itself. Male flower-heads 2 to 5, rarely 
1 to 8, sessile on the extremity of the rachis of the raceme. Stigma 
lanceolate-ligulate. Fruit stipitate, lanceolate-fusiform, with an ele- 
vated conical top gradually acuminated into a long beak. Leaves 
green, not pellucid, at least at the apex. 
In pools and lakes. Rather rare. Llyn-y-ewn, Llanberris, Car- 
narvon; the Lake district. Not uncommon in the counties of Kin- 
cardine and Aberdeen; Alvah, Banff; North Mavine, Shetland. Local 
in Ireland, but not unfrequent in Connemara, Donegal, and Antrim. 
England, Scotland, Ireland. Perennial. Summer, Autumn. 
Rootstock stoloniferous. Stem flaccid, round, faintly striated, from 
6 inches to 3} feet long, according to the depth of the water in which 
it grows. Leaves long, floating, from } to 3 inch broad, the lower 
flat above, slightly convex beneath. LBracts similar to the leaves, but 
broader in proportion, and firmer in texture. Peduncles of the lowest 
female-head 1 to 3 inches long in fruit, very rarely with 1 or 2 sessile 
heads beneath the terminal one; fruiting-heads floating, about 3 inch 
in diameter. Fruit olive, about } inch long. 
