Hill .— The Genus Caltha in the Southern Hemisphere. 427 
The key is mainly artificial and is based especially on the type of leaf 
appendage. The species are arranged geographically, commencing with 
C. involuta from Ecuador, and the numbers given in the key refer to the 
sequence of the descriptions. 
1. C. involuta, A. W. Hill ; species distincta, foliis distincte petiolatis 
appendiculis e latere auricularum inflexis in longum costae mediae 
adpositis. 
Herba perennis, humilis, acaulis, glabra, circiter 3-4 cm. alta, radice 
crasse carnosa. Folia late ovato- vel cordato-sagittata, 1 * 2 - 1-5 cm. longa 
et lata, apice retusa, marginibus paullo sinuatis, auriculis bi-appendicu- 
latis ; appendiculae erectae, oblongae, obtusae, 7-9 mm. longae, 3-4 mm. 
latae, ex auricularum lateribus inflexae vel involutae, in longum costae 
Fig. 2. C. involuta. Jameson 457. x 3. 
mediae adpositae ; petioli circiter 2 cm. longi, ima basi in vaginam 
amplam dilatati. PednnQtli uniflori, breves. Perianthii segmenta 5, 
ovata vel elliptica, obtusa, 8-9 mm. longa, 5-6 mm. lata. Stamina 
numerosa. Carpella numerosa, in rostro angustata, immatura.— C. sagit - 
tata , Wedd., Chi. And., ii, p. 306, et Huth, Abhand. u. Vort. gesammt. 
Naturwiss., iv, p. 13 , quoad spec. Jameson (Ecuador) tantum non Cav. 
Ecuador. Cotopaxi, Remy x in herb. Mus. Paris; Antisana, 4270 m., 
Jameson ; Cotopaxi, 3,950 m., in damp meadows on Eastern slopes 
(FI. March, April), Jameson 457 in herb. Mus. Brit, et Edin.; Quito, 
Jameson in herb. Mus. Brit. 
The erect appendages are formed by the lateral infolding of the 
leaf-lobes, the axis of the fold being parallel to the petiole. The 
1 M. Jules Remy ascended Chimborazo with Mr. Brenchley in 1856. An account of this 
ascent, with some remarks on the flora, is given in the Kew Journal of Botany, vol. ix, 1857, p. 143. 
