406 DICOTYLEDONES — CALYCIFLORiE. 



(specialli/) aquatics. Leaves various in insertion. The stamens 

 and pistils often separated. — 1. Hippuris, p. 1. 2. Myriophyl- 

 LUiM,^>. 324. 3. Callitkiche, />, 320. 



Ord. XXIX. CERATOPHYLLE^. Monoecious. Peri- 

 anth single, free, many- parted. Barren Jl. Antliers several, ses- 

 sile, 2-celled, bi-tricuspidate. — Fertile ji. Ovary free, 1 -celled. 

 Style oblique, filiform. Nut with 1 pendulous seed, and crowned 

 with the hardened stigma. Albumen 0. Embryo with 4 

 wliorled cotyledons. Plumule much divided. — Aii aquatic Or- 

 der, comprising one Genus, of doubtful affinity. Lindley placed 

 it near Urticecc, Richard near Coniferce, Agardh among Naiades. 

 Leaves ichorled, rigid, with narrow serrated segments, — L Cera- 



TOPHYLLUM, p. 323. 



Ord. XXX. LYTHRARIEiE. Calyx of 1 piece, free, per- 

 sistent, tlie lobes varying in number, valvate or distant in aesti- 

 vation, often with intermediate teeth. Petals between the lobes ^s 

 of the calyx, sometimes 0. Stamens inserted within the tube 

 of the calyx, equal to or double or triple the number of petals. 

 Style filiform. Stigma usually capitate. Capsule membranous, 

 2 — 4-celled, opening longitudinally or irregularly. Seeds nu- 

 merous, without albumen, on a central receptacle. — Herbs tvith 

 usually opposite leaves, ivithout stipules : flowers axillary or race- 

 mose or spiked. — Properties astringent. Henna of ^gypt is ex- 

 tracted from Lawsonia inermis. — 1, Lythrum, p. 191. 2. Pe- 

 PLis, p. 133. 



Ord. XXXL TAMARISCINE^. Calyx 4— 5-parted, 

 persistent, with an imbricated aestivation. Petals 4 — 5, from 

 the base of the calyx. Stamens 4, 5, 8 or 10, free or united by 

 their filaments. Ovary free. Capsule 3-gonal, 3-valved, 1- 

 celled, Avith many comose seeds, on 3 receptacles, at the base 

 of the cell or along the middle of the valves. Albumen 0. — 

 Shrubs, tvith twiggy branches and small scale-like leaves. — Ta- 

 marix Gallica and Africana yield sulphate of soda : the former, 

 or a variety of it, also affords, according to Ehi-enberg, the 

 Manna of Mount Sinai. — Tamarix, p. 8G. 



(MyrtacEvi:. Exotic Trees or Shrubs, abounding in the tropics. 

 Leaves opposite, entire, with pellucid dots and a vein running parallel 

 to the margin. The Myrtle Tribe includes Myrtles; Cloves, Caryo- 

 phyllus ; Allspice, Eugenia Pimento ; the Malay and Rose-apples, 

 Jnmbosa ; Melaleuca, which yields Cajeput oil, &c.) 



Ord. XXXn. CUCURBITACEiE. Frequently monoe- 

 cious or dioecious. Calyx 5-toothed, the tube adnate with the 

 ovary. Corolla 5-cleft, often scarcely distinguishable from the 

 calyx, frequently reticulated. Stamens 5, often more or less 

 cohering. Anthers tortuose, 2 -celled. Ovary I -celled, with 3 

 parietal receptacles. Style short. Stigmas lobed, thick, vel- 

 vety. Fruit fleshy. Seeds flat, in a juicy aril. Embryo flat. 



