2891.
SAXIFRAGA umbrosa b. serratifolia.
Serrated-leaved London Pride.
DECANDRIA Digynia.
Gen. Char. Calyx 5-cleft, superior or inferior. Petals
5. Styles persistent. Capsule 2-celled, with
2 beaks, opening by a pore between the beaks.
Spec. Char. Leaves obovate with cartilaginous cre-
natures or sharp notches, tapering at the base
into dilated flat petioles. Panicle racemose.
Calyx inferior, reflexed. Filaments enlarged upwards.
a. crenata. Leaves bluntly crenate, spreading. E Bot. t. 663.
(3. crenato-serrata. Leaves deeply crenate and
apiculate or subserrate, spreading.
y. punctata. Leaves ing. nearly round, serrate, ascend&.
sceernrdaitnifgo.lia. Leaves oblong, acutely serrate, asSyn.
Saxifraga umbrosa y. serratifolia. D. Don. in
Trans. Linn. Soc. v. 13. 352. Sm. Eng. FI. v. 2.
262. Mack. FI. Hibern.pt. 1. 66. Bab. Man. Br. Bot. 116.
S. serratifolia. Mack, in Reich. Iconoq. Bot cent
7. 12. t. 624.
Robertsonia serrata. “ Haw. App. Succ. 322.”
R. umbrosa y. serratifolia. Lindl. Syn. 71.
jV I r . MACKAY having favoured us with very fine living
cultivated specimens of this plant, as well as of S. Geum and
S. elegans, it has been considered advisable to publish a figure
of each of them, so that botanists may be made acquainted