84 PORTULACEH. XVI. AyYLMERIA. 
Mart. amaranth. p. 68. nov. act. bonn. 13. p. 276. 
3. p. 263. 
Lin. syst. Monadélphia, Penténdria. Calyx 2-parted, co- 
loured. Petals 5. Stamens 10, joined into a membranous hy- 
pogynous tube; the 5 outer ones abortive ; and the 5 inner ones 
opposite the petals, bearing 2-celled anthers. Style 1; stigma 
depressed, capitate. Utriculus membranous, valveless. Seeds 
numerous, lentiform, in the bottom of the cell. —Australian pe- 
rennial herbs. Stems terete, jointed, dichotomous upwards. 
Leaves linear, opposite, or in whorls. Stipulas scarious. Flowers 
beautifully coloured, in terminal corymbs. According to Mar- 
tius, the genus is related to Paronychiée, but this is doubtful, 
in consequence of the stamens being hypogynous, and also par- 
ticularly so in their being opposite the sepals. The calyx is of 
2 sepals, as in Portulaca, and the petals are 5, as in most of the 
order, and the stamens are 10, as in T'ridnthema. 
-1 A, rosea (Mart. l. c.) stems straightish, and are, as well as 
the leaves, glabrous ; stipulas ciliately serrulated ; corymb com- 
pact. Y¥.G. Native of New Holland, on the western coast. 
Flowers rose-coloured. 
Rose-coloured- flowered Aylmeria. PI. 1 foot. 
2 A. viora`cea (Mart. l. c.) stems diffusely dichotomous, and 
are as well as the leaves glabrous; stipulas quite entire; co- 
rymb loose. Y¥.G. Native of New Holland, on the west 
coast. Flowers violaceous. 
Violaceous-flowered Aylmeria. 
Cult. 
D.C. prod. 
Pl. 1 foot. 
See Ginginsia for culture and propagation, p. 83. 
XVII. HYDROPY’XIS (from idwp, hydor, water, and 
Tutic, pyxis, a box; the plant is an inhabitant of water, and the 
capsule resembles a box, from its opening transversely). Rafin. 
fl. lud. p. 94. D.C. prod. 3. p. 364. 
Lin. syst. Tetrdndria, Monogynia. Calyx permanent, 5- 
parted, bibracteate on the outside; the two inner lobes the 
smallest. Corolla peripetalous (perhaps inserted in the calyx), 
crateriform, unequally 5-lobed. Stamens 4, didynamous, inserted 
in the corolla; anthers hastate. Ovarium superior. Style 
simple, crowned by a capitate 3-lobed stigma. Capsule 1-celled, 
many-seeded, triangular, opening transversely. Central pla- 
centa free. This genus is likely to be nearer related to Utricu- 
laria than to any other. 
1 H. patu’srris (Rafin. l.c.) Native of Louisiana, in ditches 
and marshes. Pourpier des marais, Robin. voy. p.488. Stems 
creeping, prostrate. Flowers axillary, pedunculate, solitary, 
white. 
Marsh Hydropyxis. PI. creeping. 
Cult. This plant should be grown in a pot filled with peat, 
and placed in a deep pan of water. It is easily propagated by 
separating the runners, ; 
Orper CXI. PARONYCHIE'Æ (plants agreeing with Pa- 
ronychia in important characters). St. Hil. plac. lib. p. 56. 
Juss. mem. mus. 1. p. 387.—Herniariz, Cat. hort. par. (1777.), 
Illecébreze, R. Br. prod. p. 413. Lindl. intr. nat. ord. p. 164. 
Calyx of 5 sepals (f. 21. a. f. 22. a.), seldom of 3-4; sepals 
sometimes separate to the base, sometimes joined to the middle 
(f. 22. a.), and sometimes nearly to the apex (f. 24. a.). Pe- 
tals small, scale-formed (f. 22. a.), emulating sterile stamens, 
inserted upon the calyx between the lobes, occasionally wanting 
(£. 23. a.), or converted into superabundant stamina. Stamens 
perigynous, exactly opposite the sepals (f. 22. a.), if equal to 
them in number, but sometimes fewer by abortion; filaments 
distinct ; anthers 2-celled (f. 21. c.). Ovarium free. Styles 2-3, 
XVII. Hypropyxis. 
PARONYCHIEZ. 
either distinct (f. 24. a.), or partially combined (f, 22. d.). Fruit 
small, dry, 1-celled, usually membranous, either valveless and 
indehiscent, or opening with 3 valves. Seeds either numerous, 
fixed to a free central placenta, or solitary and pendulous, upon 
a funicle, arising from the base of the cavity of the fruit. Al- 
bumen farinaceous. Embryo cylindrical, lying on one side of 
the albumen, curved more or less, with the radicle always point- 
ing towards the hylum. Cotyledons small.—Herbaceous or 
half-shrubby branching plants, with opposite or alternate, often 
fascicled, entire, sessile leaves and scarious stipulas. Flowers 
small, usually whitish green, sometimes sessile and axillary, and 
sometimes variously disposed in terminal cymes. Bracteas sca- 
rious, analogous to the stipulas. 
This order comes very near Portulacee, Amarantacee, and 
Caryophillee, from which it is distinguished with difficulty. 
By excluding the section Sclerdnthee, their scarious stipula will 
distinguish them from the two last-mentioned orders, and there 
is scarcely any other character that will; for there are Caryo- 
phyllee that have perigynous stamens, as Ldrbrea and Adena- 
rium; and Paronychiée which have hypogynous ones, as Poly- 
carpe‘a, Stipuldcida, and Ortégia. From Portuldcee it is 
scarcely to be known with absolute certainty, except by the 
position of the stamens before the sepals instead of the petals. 
With Crassulacee, particularly Tille‘a, they agree very much 
in habit, but their concrete carpella will always distinguish them. 
De Candolle comprehends in the order various plants without 
stipulas ; but as the latter organs seem to be an essential part of 
their character, the tribes Queridcee and Minuartiée are ex- 
cluded, and willbe found elsewhere. 
Synopsis of the genera. 
Terre I. 
TELEPHIE`E. Calyx 5-parted (f. 21. a.). Petals and stamens 
5, inserted in the bottom of the calyx (f. 21. b.). Styles 3 (£. 
21. e.) free, or connected together a litile at the base. Leaves 
alternate, stipulaceous. 
1 TrLe'PHium. Styles 3, spreadingly reflexed, concrete at 
the base. Capsule pyramidal, trigonal, 3-valved, 3-celled at 
the base, and l-celled at the apex. Seeds numerous, fixed to 
the central placenta, in 6 rows. 
2 Corriciora. Style short ; stigmas 3 (f. 21. e.). Capsule 
1-seeded, indehiscent, covered by the calyx. Seed suspended 
by a funicle, originating at the bottom of the capsule. 
Trise II. 
ILLECE'BREÆ. Calyx 5-parted (f. 22. a.) Petals 5 or want- 
ing. Stamens 2-3, inserted in the bottom of the calyx (f. 22. a.). 
Styles free or somewhat concrete at the base (f. 22.d.). Capsule 
indehiscent, 1-seeded. Funicle long, rising from the bottom of 
the capsule, bearing a subpendulous seed at the apex.—Herbs, 
rarely subshrubs. Leaves opposite, acute, with scarious stipulas. 
3 Hernia‘ria. Calyx almost 5-parted. Scales or petals ő, 
filiform, entire, but sometimes wanting or very small. Stamens 5, 
or only 2-3 from abortion. Styles 2, short, distinct, or concrete 
at the base. Capsule covered by the calyx, 
