1 54 Hill . — A Revision of the Geophilous Species of Peperomia . 
P. claytonioides, Kunth (PL XV, Figs. 8 and 9). 
Tuber hypogaeum, globosum, circa 7 mm. diametro, radicibus fibrosis 
ex uno loco prope apicem instructum. Caulis subnullus. Folia supra laete 
viridia, subtus glaucescenti-viridia, opaca, in rosulam congesta. Lamina 
orbicularis vel ovato-orbicularis, 3-4 cm. diametro, apice acutiuscula, sub 
medium peltata, carnosula, venis 6-8. Scapus simplex vel 2-3 ramosus, ad 
30 cm. longus ; amenta laxiflora. Bractea ovato-acuminata, carnosula, 
centro viridula, ceterum albida, supra basin rotundata. Stamina filamentis 
instructa. Bacca globosa, -8 mm. diametro, rugosa, apice in appendicem 
angustam cylindricam circa 4 mm. longam summo apice stigmatiferam 
producta. Semen globosum, *65 mm. diametro. 
P . claytonioides , Kunth in Ind. Sem. Hort. Bot. Berol., 1847, p. 11. 
C.DC. in DC. Prodr., XVI, i, p. 400. Dahlst., 1 . c., p. 33, Tab. i, Fig. 10. 
Guatemala. Loco non indicato. Sauer communic. Specimina culta. 
H. Lefr. Montp. (Herb. Berol.). Ex Hort. Berol. (1847), (Herb. Berol.). 
Ex Hort. Kew, 1863 (Herb. Kevv). 
P. claytonioides is of considerable interest, since it appears to be the 
only geophilous species which has been raised from seed in Europe. In 
fact all of the specimens in our herbaria have been grown in different 
botanical gardens, and the original description of the species was founded 
on a plant raised in the gardens at Berlin. This species is very closely 
allied to P. ovato-peltata , as Dahlstedt 1 has already pointed out. It may, 
indeed, be identical with it, and possibly represents the cultivated form of 
P. ovato-peltata. In the shape of the leaves, the white inflorescence bracts 
and the fruits, which are globose with a style *3—4 mm. long, this species 
seems to agree with P. ovato-peltata . The most important points of differ- 
ence are seen in the much larger and more delicate leaves of P. ovato-peltata , 
coupled with inflorescences which are shorter and less branched than those 
of P. claytonioides , both of which characters must be considerably influenced 
by environment. 
P. pirmlana is closely allied to both P. ovato-peltata and P. clayto- 
nioides, and Dahlstedt suggests that it may be only a variety of the latter. 
It seems to me more likely that both these species should be united to 
P. ovato-peltata , but the material is at present too scanty to justify such 
a union. 
P. Gaudichaudii, A. W. Hill, sp. nov. 
Tuber hypogaeum, parvum, globosum, *5-1-2 cm. latum, 4-6 m.altum, 
radicibus fibrosis instructum, primum ex uno loco prope apicem ortis deinde 
rosulam foliorum cingentibus tuber obscurantibus. Caulis subnullus. Folia 
in rosulam congesta, olivacea ; petiolus 2-8 cm. longus ; lamina triangulari- 
orbicularis vel cordato-orbicularis, apice subobtusa, circa 5-9 mm. longa, 
6-8 mm. lata, magis minusve membranacea, sub medium peltata, venis 
1 Dahlst., 1 . c., p. 34. 
