93. ARACEJ2. 433 



above, fl. sessile [per.-segm. of female heads broad several -nerved with 

 but slightly enlarged tip], stigma linear, ripe fr. obpyramidal- 

 cuspidate [with short stout beak], seeds few-ribbed. J3. B. 744. 

 R. ix. 326. 8. ramosum (Huds.) ed. viii. St. erect, about 2 ft. 

 high ; lower branches with several heads, 1 3 fertile, the rest 

 barren. Heads spherical. L. long linear, erect. [0. micro- 

 carpum (Neum. under S. ramosum) ; smaller, st. less branched, fr. smaller 

 less angular and less abruptly narrowed into a longer beak]. Ditches. 

 P. VI. VII. E. S. I. 



2. S. neglec'tum (Beeby) ; root-1. triquetrous at the base, st. branched 

 above, per.-segm. of female fl. narrow usually 1-nerved with much 

 enlarged tip, stigma linear-lanceolate, ripe fr. oblong-obovoid obscurely 

 angled narrowed gradually into a rather long tapering beak. J. of S. 

 xxiii. (1885) p. 193, t. 258. Resembling Sp. 1 in habit, inflorescence less 

 branched and less spreading. Wet places. P. VI. VIII. E. S. I. 



3. S. simplex (Huds.); 1. trigonous at the base, st. simple, 

 stigma linear-subulate, fr. slightly stalked subfusiform, seeds 

 smooth. E. B. 745. R. ix. 325. St. 12 ft. high, long, erect 

 or ascending. L. long, often [var. longissimum Fries] floating 

 (and then often mistaken for S. natans} $ sheath slightly fur- 

 rowed, not inflated. Heads many ; barren several, sessile ; 

 fertile shortly stalked, especially the lowest. Fr. narrowed 

 into a long beak, elliptic-fusiform. Ditches. P. VII. E. S. I. 



4. S. natans (L.) ; st. simple flaccid, floating 1. very long 

 linear flat at the base from a dilated sheathing base, heads many 

 distant, lower fertile heads stalked, male heads several sessile, 

 stig. linear-lanceolate, fr. stalked oblong not longer than its subu- 

 late beak.S. affine Schn. Sy. E. B. 1389. R. ix. 417. St. 

 much thicker than in the next plant. L. grass-green, very long. 

 Male heads fewer in our plant than in the Swedish. Lakes, 

 rare. P. VIII. E. S. I. 



5. S. mln'imum (Fr.) ; st. simple flaccid, 1. linear floating 

 blunt not dilated at the base, hea Is few racemose or spiked 

 distant, usually only 1 male head, stig. short oblong-lanceolate, 

 fr. sessile ovoid shortly beaked. S. natans Sm. E. B. 273. R. ix. 

 ;524. St. slender. L. pale, pellucid, long. Lowest fertile 

 heads sometimes very shortly stalked. [Often 2 male heads in 

 Ireland (A. G. More). S. flaitans Fr. ?] Lakes and ditches. 

 P. VII. VIII. E. S. I. 



Order XCIII. ARACE.E. 



Fl. monoecious or perfect, placed on a spadix and often in 

 a spath. Barren and fertile fl. usually on different parts of the 

 spadix. Perianth none, or of 4 8 scales. Stain, many or 



u 



