135 
Genus 2. ScurvcHzerta. 
S. PALUSTRIS. Fig. 1341, 
Leaves semicylindrical. Flowers in a terminal raceme. Bogs ; rare. 
6in. Perem. July. Green. (2) EF. B.1.1801. 2. B. 2. 531. 
H.§ Arn. 472. Bab. 346. Lind. 252. 
Orprer C. TYPHACE A. 
Genus 1. Typma. 
T. vatiroLia. Bull-rush. Cat’ s-tail. Fig. 1342, 
Leaves broad, linear. Flowers in a continuous spike. Pools. 4-6 ft. 
Perenn. July and Aug. Brown; sterile, yellow. (4) #.B.1, 1455, 
E. B. 2.1241. H.& Arn.473. Bab.347. Lind. 247. 
T. aNnGuSTIFOLIA. Lesser Bull-rush. Fig. 1343, 
Leaves linear, narrow. Sterile and fertile catkins rather distant. 
Pools. 3-4ft. Perenn. July. Brown; sterile, yellow. (4) E.B. 
1.1456. EH. B. 2.1242. H.§& Arn.473. Bab.347. Lind. 247. 
T. minor. Dwarf Bull-rush, Fig. 1344, 
Leaves linear-sctaceous, convex beneath. A doubtful native. 1-12 ft. 
Perenn, July. Brown; sterile, yellow. ($) #.B. 1.1457. 2. B. 2. 
1243. H.& Arn. 473. Bab. 346. Lind. 247. 
Genus 2. SPARGANIUM. 
S. ramosum. Branched Bur-Reed. Fig, 1345. 
Leaves long, linear, concave at the sides. Stem branched. Stigma 
linear, Ditches. 2-3 ft. Perenn. July, Stamens yellow. (3) 2. B. 
1.744. #.B.2,1244. H.& Arn. 474. Bab. 347. Lind. 247. 
S. simPpLEX. Upright Bur-Reed. Fig. 1346. 
Leaves flat at the sides. Stem simple. Stigma linear. Ditches. 
1-2 ft. Perenn. July. Stamens pale yellow. (2) #. B. 1. 745. 
EF. B,2.1245. H.§ Arn. 474. Bab. 347. Lind. 247. 
8S. natans. Lloating Bur-Reed. Fig. 1347. 
Leaves floating, flat. Stem simple. Stigma ovate. Lakes. 6-10 in. 
Perenn, July and Aug. Stamens yellow. (2) #.B.1.273. EF. B. 
2.1246. H. § Arn, 474, Bab, 348. Lind. 248. 
Orper Cl. ARACEAL. 
Genus 1. Anum. 
A. mMacuLatum. Cuckow-pint. Lords-and-Ladies. Fig, 1348. 
Leaves halberd-shaped, glossy, usually spotted. Spadix club-shaped. 
Hedges, banks, and thickets. Poisonous. 6-10 im. Perenn. May. 
Spathe greenish ; spadix purple. (4) &, B.1.1298. #. B. 2.1319. 
H.§ Arn.475, Bab.348. Lind. 246. 
Orper CII. ORONTIACEA. 
Genus 1. Acorvs. 
A. Catamus. Sweet-Flag. Fig. 1349. 
Leaves sword-shaped. Stem leaf-like. Flowers im a sessile spadix. 
River-sides. 2-3 ft. Perenn. July. Green. (3) #. B. 1. 356. 
E. B. 2.495. H.§ Arn. 476. Bab. 348. Lind. 246. 
Orvzr CII. PISTIACH AI. 
Genus 1. Lemna. 
L. rrisutca. Ivy-leaved Duckweed. Fig. 1350. 
Fronds elliptic-lanceolate, linear at the base. Ditches and ponds. 
Am. JuneandJuly. £. B. 1.926. #, B. 2.33. H. § Arn. 477. 
Bab, 349. Lind. 251, 
