16. subsessilis, Rose. This is very similar to E. Peacockii, but has shortly pedicelled flowers It is a very beautiful species, well suited for flat bedding. Native of Cent. Mex.

ff. Lower pedicels elongated.

G. Leaves very turgid.

17. elegans. Rose. Stemless: leaves numerous, sometimes 80-100 in cult, specimens, forming very compact rosettes, very glaucous, pale bluish green, very turgid, with translucent margins, these sometimes reddish: flowering branches pinkish, with 8-12 leaves; flowers in a succulent raceme; corolla 5 lines long, its segments distinct nearly to the base, pinkish with yellow spreading tips. - Known only from material collected near Pachuca, Mex., by J. N. Rose. This is one of the most beautiful species of the genus, and is well suited for rockeries or for use in flat bedding. This is not to be confused with Cotyledon elegans, N. E. Br., which is Oliveranthus elegans.

18. simulans, Rose. A similar species with somewhat different habit and leaves, and with slightly different corolla; sepals appressed rather than spreading.

gg. Leaves not turgid. h. The leaves glaucous green.

19. glauca, Baker (Cotyledon glauca, Baker). Stemless: leaves in small but dense rosettes, nearly orbicular, broadened just above the apex, almost truncate, but with a decidedly purple mucro, very pale, slightly glaucous: flowers 15-20 in a small secund raceme. Cent. Mex. - Often confused with E. secunda, but apparently specifically distinct. Page 870.

hh. The leaves with reddish margins.

20. secunda, Booth (Cotyledon secunda, Baker). Fig. 1083. Stemless, glabrous: leaves numerous, inclined to be erect, forming a dense rosette, bluish green, ovate-cuneate, broad at margin and more or less reddish: flowers 12-15 in a secund raceme. Mex. Page 870.

cc. Infloresence a compound raceme.

d. Plants acaulescent.

E. Sepals widely spreading.

21. rubromarginata, Rose. Stemless or sometimes with a short stem: leaves comparatively few, stiff, ascending, glabrous, glaucous, with a somewhat crenulate, red margin: flowering stems sometimes a foot high, more or less paniculate. Mex.

ee. Sepals erect and closely appressed to the corolla.

22. subrigida, Rose (Cotyledon subrigida, Rob. & Seaton). Stemless, glaucous throughout: leaves in a dense rosette, flat, acute, very glaucous, bluish green, tinged with purple, the margins of young ones bright scarlet. Mex. - This is one of the most beautiful of all the echeverias. It is especially suitable for growing in clusters.

dd. Plants caulescent.

e. Shape of leaves acute.

f. Leaves tapering into a long narrow stalk.

23. Scheerii, Lindl. (Cotyledon Scheerii, Baker). stems sometimes 2 ft. tall, or more often branched, glabrous, and somewhat glaucous: infloresence a few-branched panicle; petals red or tinged with yellow, thick, erect or spreading at tip. Undoubtedly Mex., but known only from cult, material. B.R. 31:27. Page 870.

ff. Leaves somewhat narrowed downward, but with a broad base.

24. fulgens, Lem. (Cotyledon fulgens, Baker). stems usually 4-8 in. high, glabrous throughout: leaves few in each rosette: infloresence paniculate; corolla strongly 5-angled, coral-red without, yellowish within. Mex. Page 870.

ee. Shape of leaves obtuse.

F. Leaves rounded on the face.

25. campanulata, Kunze. Short, caulescent, the branches crowned by rosettes of large leaves: leaves spatu-late, tapering into thick petioles, very glaucous, obtuse at apex: petals thick, reddish without, yellowish within, somewhat spreading at tip. Mex. B.R. 1247 (as E. gibbiflora). - It is said to be near E. gibbiflora, but it certainly has very different foliage.

ff. Leaves concave or flat on the face.

26. gibbiflora, DC. stems often tall, 2 ft. or more high, glabrous throughout: leaves 12-20 in a close rosette, obo-vate-spatulate, often highly colored: infloresence a lax panicle. Mex. variety metallica. A very common and popular greenhouse plant. It is very similar to the type, but has more highly colored leaves Page 870.

E. argintea, Lem., I.H. 10: Misc. 78, 1863=Dudleya pulveru-lenta. - E. Bernhardyana, Foerst., is a garden species or form from an unknown source. - E. bracteosa, Lindl. & Paxt.=Pachy-phytum sp. - E. cinirea is listed in Johnson's Gardener's Dict., p. 264, 1894, as a hybrid. - E. clavifolia, Deleuil, is a hybrid of Pachyphytum bracteolosum and Courantia rosea. - E. Clive-landii is a hybrid in cult, at the White House, Washington. - E. cyanea, Johnson Gard. Dict., is a garden hybrid. - E. dealbata, Johnson Gard. Diet, garden hybrid. - E. Desmetriana, L. De Smet = E. Peacockii. - E. ericta, Deleuil, is said to be a hybrid of E. coccinea and E. atropurpurea. - E. ferrea, Deleuil, said to be a hybrid of E. Scheerii and E. Calophana. - E. globbsa, Hort. ex. E. Morr. in B.H. 24:161. (1874.) Caulescent or nearly so: leaves numerous, forming a dense rosette, spatulate, pale and somewhat glaucous, about 3 in. long, broadest near the top and there 4/3-1 in. broad, mucronate at tip, rather flat: flowering branches weak and spreading, bearing a few linear bracts, branched at top into 2 secund racemes; sepals linear, very unequal, somewhat ascending; corolla both before and after flowering strongly 5-angled, reddish below, yellowish above and within; petals free nearly, if not quite, to the base; stamens opposite the petals borne on the lower third of the corresponding petals; the 5 alternate stamens free nearly to the base: carpels free, erect.

This description is drawn from a plant in the Washington Botanical Garden of unknown origin. It resembles somewhat E. secunda. - E. grandiflora, E. Morr., is evidently a typographical error for E. grandifolia, Haw. - E. grandis, E. Morr.=E. gibbiflora(?). - E. grandisepala, Deleuil, is said to be hybrid of E. metallica and a Courantia. - E. herbacea, Johnson Gard. Diet., is a garden hybrid. - E. imbricata, Deleuil, Cat. 1874; Deleuil in E. Morr. B.H. 24:329. (1874.) Deleuil in A. De Smet. R..B. 3:147. (1677.) This is cult, in the Washington Botanical Garden, and in the White House grounds. This species seems to be a favorite as a border plant in Washington City parks. It is said to be a cross between E. glauca and E. metallica. The infloresence, while secund as in E. glauca, is generally, although not always, 2-branched, while the leaves are larger than in the true E. glauca. - E. metallica decora, Rodgers, I.H. 30:505, is a variegated form of C. metallica. - E. mirabilis, Deleuil, is a hybrid. - E. mutabilis, Deleuil, is said to be a hybrid of E. Scheerii and E. lingulaefolia. - E. ovata, Deleuil, is said to be a hybrid of E. Scheerii and E. metallica. - E. pachy-phytioides, L. De Smet, is a cross of Pachyphytum bracteosum and E. metallica. - E. pruinosa, Deleuil, is said to be a hybrid between E. lingulaefolia and E. coccinea. - E. pulverulenta, Nutt. =Dudleya. - E. Purpusii, Schum.= Dudleya. - E. rosacea, Lind. & Andre I.H. 20:124, said to be close to E. secunda; locality not given. - E. rosea, Lindl.=Courantia. - E. scaphylla, Deleuil, is a hybrid of Urbinia agavoides and E. lingulsefolia. - E. securifera, Deleuil, is a hybrid. - E. spathulata, Deleuil, is a hybrid. - E. spiralis, Deleuil, hybrid. - E. stellata, Deleuil, hybrid.

J. N. Rose.