382 XLVIII. ROSACEZ (OLIVER). | Newrada. 
A woody tomentose annual, with diffuse or procumbent branches. 
Leaves alternate, petiolate, ovate-oblong or ovate, obtusely serrate- 
pinnatifid, obtuse, cuneate or rounded at base. Stipules concealed in 
the tomentum or obsolete. Flowers axillary, solitary, pedunculate. 
1. N. procumbens, Linn.; DC. Prod. ii. 548. Leaves usually 
4—3 in. long, with 1- to 3 or 4 obtuse lobes on each side, tomentose ; 
petiole equalling or shorter than lamina. Flowers roundish, densely 
tomentose and with projecting setiform bracteoles; 2—3 lines in dia- 
meter. Fruit $—$ in. in diameter, orbicular with the margin and upper 
surface aculeate with nearly equal prickles, or symmetrically spinosely- 
lobate with few aculei above. 
Nile Land. Nubia (Schweinf. et Asch. Enum.) 
Also in Northern Africa and eastward through Arabia to Scinde. 
The small allied Cape genus of low annual herbs Grielum, has not, that I am aware 
of, been found north of the Tropic of Capricorn, though probably intertropical in 8.W. 
Africa. It differs in its large flowers with conspicuous petals, and in the absence of the 
calycine bracteoles, 
Orver XLIX. SAXIFRAGACEZ. (By Prof. Oliver.) 
(SAXIFRAGEEZ AND BREXIEZ.) 
Flowers regular, hermaphrodite. Calyx 5-merous, free or more oF 
less adnate to the ovary, lobes imbricate or valvate. Petals perigynous 
epigynous or subhypogynous, alternate with calyx-lobes, rarely 0. 
Stamens iso- or diplo-stemonous, inserted with the petals; filaments 
free; anthers 2-celled, dehiscing longitudinally. Ovary free or adnate 
more or less to inferior, 5—2- or I-celled; ovules indefinite; styles 
usually 2, free or cohering or 1 in Brevia. Fruit a capsule or drupa- 
ceous. Seeds indefinite—Herbs. Leaves rarely opposite, exstipulate. 
Inflorescence various. (Shrub with coriaceous leaves in Brewia.) 
Tribes of a rather large Natural Order, most of the genera of which affect a cool or 
even arctic or alpine climate. 
Herbs. Styles 2. 
Stamens 10. Ovary 2-celled, with axile placentas: =... > =.) 1. Saxaresces 
Stamens 5. Ovary I-celled, with 2 pendulous placentas. .°. .. . 25 VAHUIA 
Shrub. Style 1. Ovary 5-celled eee eee sos 3. Brexia. 
1. SAXIFRAGA, Linn.; Benth. et Hook. f. Gen. Plant. i. 635. 
Calyx more or less deeply 5-lobed, tube free or coherent to the ovary- 
Petals 5, perigynous or subhypogynous. Stamens 10 or 5, inserted 
with the petals. Ovary free or more or less adnate to the calyx-tube, 
2-celled; styles 2;, ovules indefinite on axile placentas. Fruit a 2- 
beaked many-seeded capsule, opening at the apex between the remains 
of the styles.—Herbs, Me: various in habit. Leaves radical or cauline, 
rarely opposite, entire or lobed or laciniate. Flowers white, yellow or 
purple, variously cymose or solitary. 
