tvpiiace.t;. 7 



bnse ; but in this state I heave 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 S. ramosum as that of 

 S. simplex, and has fallen into a similar error in his description in 

 " Icon. Fl. Germ, and Helv." vol. xi. p. 3. 



Unbranched Bur-reed. 



Frencli, Etibanier simjple. German, Einfaclie Itjelskolbe. 



SPECIES m.— SPARGANIUM APPINE. Schieitzl. 



Plate MCCCLXXXIX. 



Jtekh. Ic. Fl. Germ, et Helv. Vol. IX. Tabs. CCCXXIV. CCCCXVII. Fig. 925. 



Billot, Fl. GaU. et Germ. Essicc. No. 854. 



S. natans, ^^ Linn." Bab. Man. Brit. Bot. ed. vi. p. 358. Hook. & Am. Brit. Fl. 



ed. viii. p. 474. Gren. & Godr. Fl. de Fr. Vol. III. p. 337 (non Fries., test. C.J. 



Eartmann, Skand. Fl. ed. ix. p. 218). 

 S. simplex, var. Benth. Handbk. Brit. Fl. ed. ii. p. 434. 

 S. longifolium, Bon. MS. (non Turcz.). 



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-cwn, Llanberris, Car- 

 narvon; the Lake district. Not uncommon in the counties of Kin- 

 cardine and Aberdeen ; Alvah, Banfi^; 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 3i feet long, according to the depth of the water in which 

 it grows. Leaves long, floating, from i to f inch broad, the lower 

 flat above, slightly convex beneath. Bracts similar to the leaves, but 

 broader in proportion, and firmer in texture. Peduncles of the lowest 

 female-head 1 to 3 inches long iu fruit, very rarely with 1 or 2 ses.sile 

 heads beneath the terminal one; fruiting-heads floating, about f inch 

 in diameter. Fruit olive, about i inch long 



