NITRARIACEZ. I. Nitraria. 
sometimes in fascicles. Flowers in cymes, or solitary. The 
affinity of Nitraria with Ficoidee is undoubtedly great, espe- 
cially with Tetragonia ; but its very different embryo, and the 
peculiar zestivation of the petals, which is much more like that 
of Rhamnee@ remove it from that order. 
I. NITRA‘RIA (so named by Schreber, who first found it 
in Siberia, near the nitre works, with other marine plants), Lin. 
gen. no. 632. Lam. ill. t. 403. Geertn. fruct. 1. t. 58. D.C. 
prod. 3. p. 456. 
Lin. syst. Dodecdndria, Monoginia. Character the same 
as that of the order. 
1 N. Scuose'r1 (Lin. spec. 638.) leaves cuneate, obtuse, mu- 
cronate, quite entire. h. H. Native of Siberia, about the 
nitre works; and of the Soongarian desert, in salt fields every 
where, and about Loktewsk, as well as on the borders of the 
Caspian Sea. Pall. fl. ross. 1. t. 50. f. aandb. Lam.ill. t. 
403. f. 1. Flowers white, disposed in panicled cymes. The 
Siberian and Caspian varieties are not different, unless in the 
more luxuriant growth of the Caspian kind, which is owing to 
its growing in a more humid situation than that of the Siberian 
variety. 
Scheeber’s Nitraria. Fl. May, Aug. Clt. 1778. Sh. 3 feet. 
2 N. rripenra'ra (Desf. fl. atl. 1. p. 372.) leaves cuneated, 
retuse, somewhat tridentate at the apex; drupes ovate. h. H. 
Native of Barbary and Egypt, in sandy fields. Péganum re- 
tisum, Forsk. ex. Dill. ill. fl. egyp. Branches spinose. Flowers 
white, in panicled cymes. Fruit red. 
Tridentate-leaved Nitraria. Clt. 1820. Shrub 14 foot. 
3 N. Senzcare’nsis (Lam. ill. t. 403. f. 2. dict. 4. p. 493.) 
leaves obovate, obtuse, quite entire; drupes trigonal. h. S. 
Native of Senegal. Flowers white, in panicled cymes. This 
species is easily distinguished from the rest by its pyramidal tri- 
gonal drupe. ° 
Senegal Nitraria. Shrub 1 to 2 feet. 
+ A doubtful species. 
4 N. Brttarpie‘rn (D. C. prod. 3. p. 456.) leaves linear, 
attenuated at the base, acutish, quite entire ; drupes ovate, acu- 
minated. h.G. Native of New Holland. Very nearly allied 
to N. Schébéri, Labill. mss. but very different from it in the 
fruit being ovate conical, as well as from growing in a different 
part of the world. 
La Billardier’s Nitraria. Shrub 1 to 2 feet. : 
Cult. This is a genus of singular shrubs : they thrive best in 
a sandy or gravelly soil, and should be occasionally refreshed 
with salted water, or they will not flourish; they may be in- 
creased by layers ; or cuttings planted in sand, with a hand-glass 
over them, strike root readily. The N. Senegalénsis, being a 
stove plant, and N. Billardiéri should be grown in pots, in order 
that they may be placed in their respective situations. 
Orpen CXVI. REAUMURIA‘CEE (plants agreeing with 
Reaumiria in important characters). Reaumuriéa, Ehrenberg in 
ann. des. sc. 12. p. 78. (1827). Lindl. introd. bot. p. 48. 
Calyx 5-parted (f. 31. a.), surrounded externally by imbri- 
Cating bracteas. Petals 5 (f. 31. b.), hypogynous. Stamens de- 
finite or indefinite (£. 31.), hypogynous, with or without a hypo- 
8ynous disk; anthers peltate (f. 31. d.). Ovarium superior. 
Styles several (f. 31. f.); filiform or subulate. Fruit capsular 
(£ 81. e.), with 2 or 5 valves, and as many cells, opening in the 
Middle of the cells. Seeds definite, villous. Embryo straight, 
Surrounded by a small quantity of mealy albumen, with the 
REAUMURIACEA. 155 
I. Reaumuria. 
radicle next the hylum. Shrubs. Leaves fleshy, scale-like or 
small, and alternate, without stipulas. Flowers solitary. Dr. 
Ehrenberg suggests (ann. sc. l. c.) that Reaumdria and Holo- 
láchna, both of which have according to him hypogynous sta- 
mens, may constitute a little group to be called Reaumuriée. 
The order appears to be more nearly related to Hypericinee 
than to either Ficotdee or Nitrariacee, and ought perhaps to 
have followed that order among the Thalamiflore in vol. I. 
From the former it chiefly differs in its succulent habit, and 
definite villous seeds, agreeing with Reaumiria, at least even in 
the obliquity of the veins of the petals, and in the leaves being 
dotted. From Ficotdee its hypogynous stamens and seeds dis- 
tinguish it; from Tamariscinee, its plurilocular ovarium and 
distinct styles ; from Nitrariacee, its erect villous seeds, dis- 
tinct styles, and hypogynous stamens. Saline matter is present 
in these plants in great abundance. 
Synopsis of the genera. 
1 Reaumu‘ria. 
crowded leaves on the outside. 
joined at the base into 5 bundles. 
2 Hotora’cuna. Calyx 4-5-parted. Stamens 8-10, mona- 
delphous. 
Calyx 5-parted (f. 31. a.), involucrated by 
Filaments indefinite (f. 38.), 
I. REAUMU'RIA (so named by Haselquist in honour of 
René Antoine Ferchault de Reaumur, member of the Academy 
of Sciences at Paris, &c.; author of several Memoirs, Histoire 
des Insects, &c. He died in 1757). Lin. gen. 686. Lam, ill. 
489. D.C. prod. 3. p. 456. 
Lin. syst. Polydndria, Pentagynia. Calyx 5-parted (f. 31. 
a.), involucrated by leaves on the outside. Petals 5 (f. 31. b.), 
furnished with a ciliated appendage on each side at the base. 
Ovarium distinct. Stigmas 5-6, filiform (f. 31. f.) Capsule 
5-celled, 5-valved ; dissepiments easily separated from the valves. 
Seeds 2 in each cell, very villous.—Oriental shrubs, with fleshy, 
alternate, glaucous, dotted leaves, exuding globules of a saline 
alkali. Flowers solitary at the tops of the branches. 
1 R. vermicura'ta (Lin. spec. 754.) leaves subulate, semi- 
terete, imbricated, crowded on the branches. h.F. Native of 
Sicily, Barbary, and Egypt, on the sea shore. Lam, ill. 489. f. 
1. Desf. atl. 1. p. 481.—Lob, icon. 380. Flowers white or 
pale red. Habit of Chenopddum fruticdsum. Hairs on the seeds 
rufous, and very stiff. 
Vermiculated Reaumuria. FI. July, Oct. Clt. 1828. Sh. 1 ft. 
2 R. uypericoipes (Willd. 
spec. 2. p. 1250.) leaves lanceo- 
late, flat, rather remote. h. 
F. Native of Syria, Tauria, and 
Persia, in arid places. Lam. ill. 
489. f. 2. Ker. bot. reg. t. 845. 
Hypéricum alternifolium, Labill. 
syr. dec. 2. t. 10. R. linifolia, 
Sal. par. lond. t. 18. R. cistoì- 
des, Willd. enum. p. 578. R. ver- 
miculàta var. 3, and perhaps also 
var. a, Bieb. fl. taur. 2. p. 17.— 
Buxb. cent. 2. t. 35. Flowers of 
a purplish rose-colour. Hairs on 
seeds woolly. (f. 31.) 
St. John’s-wort-like Reaumu- 
ria. Fl. Jul. Oct. Clt, 1800. Sh. 
1 to 2 feet, 
x2 
FIG. 31. 
