kxVi GENERA. 



solitary, ovate, with capillary bristles attached to its stalk. Aquatic, upright herbs. L. linear, 

 erect, entire, smooth ; none on the wpper ^art of the stem. Typhace^. p. 379. 



834. ELYWA. Scdes tUed, each covering a spikelet of 2 Pits. Lower Fit. fertile, fui-- 

 nished with a glume, of which the margins are united at the base ; upper barren. Habit of 

 Carex. Cypeeace^. p.. 383. 



835. KOBRESIA. Scales tiled ; the lower covering a spikelet of 1 fertile Elt., or one fertile 

 and one ban-en or neuter; the upper mth barren Fits. only. Habit of Carex. CypekacEjE. p. 383. 



836. CAKEX. Catkin imbricate. Cal. a simple scale. Perigone of barren Fl. ; offer- 

 tile PI. of one L., persistent, enclosing the seed like a seed-vessel. Grass-like Herbs, with creep- 

 ing or tufted roots. Cypekace^. p. 384. 



854. COIX. Fl. glumaceous : barren uppermost, in spikes ; fertile nearly solitary. Invo- 

 lucrum becoming hard, enclosing the seed. Style cloven. Gkamina. p. 398. 



III. TETRANDRIA. 



679. LITTOKELLA. Barren Fl. stalked ; Cal. 4-leaved ; Cor. 4-cleft ; Sta. capillary, 

 very long. Fertile Fl. sessile ; Cal. ; Cor. 3^-cleft ; Style simple, very long. Nut rugose, 

 of one ceU and one seed. Small, stemless Herbs, with linear L. Plantagine^. p. 309. 



716. BITXUS. Barren Fl. containing rudiment of a germen ; Cal. 3-leaved; Pet. 3. Fertile 

 Fl. superior ; Cal. 4-leaved ; Pet. 3 ; Styles 3. Caps, with 3 beaks and 3 ceUs. Evergreen Shrubs, 

 with rigid, smooth, opposite, quite entire L. Fl. clustered, axillary. Euphorbiace^. p. 325. 



720. tTBTICA. Barren. Cal. 4-leaved; Pet. 0; Nect. central, cup-shaped. Fertile. 

 Cal. 2-leaved; Pet. ; Stigma sessile, brush-like. Seed 1, superior, polished. Stinging Herbs, 

 with opposite undivided L. Fl. green. TJrticEjE. p. 330. 



733. ALWUS. Catkins separate. Cal. a simple permanent scale. Barren Fl. Scale 3- 

 flowered ; Cor. 4-parted. Fertile. Scale 2-flowered ; Cor. ; Styles 2. Nut compressed, 

 without wings. Trees, or Shrubs, with alternate, stalked L., and twin, deciduous stipules. 

 Amentace^. p. 342. 



749. EEIOCAULON. Common Cal. imbricate, many-flowered. Barren Fl. in the mid- 

 dle. Cor. 4-6-pai'ted. Sta. (in the European species) 4. Fertile Fl. in the circumference. 

 Pet. 4. Style 1. Caps, superior, 2-3-celled. Seeds solitaiy. Aquatic plants, L.from root, 

 cMnneled. Scape erect. Ekiocaule^. p. 346. 



694. ETJBOTIA. Barren Fl. Sta. inserted at the bottom of a 4-parted calyx. Fertile. 

 Cal. tubuloso-ui'ceolate, bidentate. Seedl, in a very thin covering. Embryo in the circiunference. 

 Chenopodiej3. p. 315. 



IV. PENTANDRIA. 



504. XA!KrTHIUM. Barren. Invol. of many L. and many Fl. ; Recept. chaffy; Cor. tu- 

 bular. Fertile. Invol. of 1 L., prickly, divided into 2 one-iiowered cells ; Cor. 0. Seeds 

 covered with the hardened involucrum. Annuals. L. alternate. Composite, p. 236. 



505. AMBROSIA. Barren. Invol. of 1 L., many-flowered ; Cor. funnel-shaped. Fertile. 

 Invol. 1 -flowered; L. hardening on seed, and forming a nut-like fi-uit. Aromatic. Lower L. 

 opiposite ; upper alternate, pimiatifid. Composite, p. 236. 



682. AMARAKTTHUS. Cal. of 3-5 L. Cor. 0. Barren. Sta. 3-5. Fertile. Styles 

 2-3. Caps, circumsciss, of one cell and 1 seed, with 3 beaks. L. stalked, alternate, undi- 

 vided. AlIAEANTHACEiE. p. 311. 



243. BRYOIflA. Cal. 5-cleft. Cor. 5-cleft. Barren. Anthers in 2 pairs, and a 

 single one. Fertile. Style 3-cleft. Berry 3-ceUed ; skin thin. Herbaceous Climbers, with 

 simple tendrils, and stalked, alternate, lobed L. Cucurbitace^. p. 139. 



