Fig. 84. Echeveria amphoralis. Left, flowering plant in the garden of Victor Reiter; center, flowers; right, foliage

139. Echeveria amphoralis sp. nov.

"Pertinens Ser. Echeveria; (1); puberula, caulescens, ramosa, ad 30 cm. alta; foliis remotis vel subrosulatis, obovato-cuneatis, mucronatis, ad 35 mm. longis, 20 mm. latis; inflorescentiis lateralibus, racemosis, ad 15 cm. altis; bracteis patentibus, obovatis, acutis, ad 30 mm. longis, 14 mm. latis; racemis aequilateralibus, ad 7-floris; pedicellis ad 12 mm. longis, 3 mm. diametro, turbinatis; bracteolis 2, fugaceis, lineari-lanceolatis, ad 14 mm. longis; sepalis subaequalibus, ad 14 mm. longis, lanceolatis, acuminatis, crassis, patentibus; corollis amphoralibus, magnis, ad 24 mm. longis, 14 mm. diametro, coccineis et flavis; ovariis cum stylis 19 mm. longis; stylis tenuibus, viridibus; nectariis transversis, lunato-reniformibus, ad 4 mm. latis, albidis."

Type: CAS:409844. T. MacDougall B-82. (UCBG: 56/801.1)

Occurrence: Mexico; Oaxaca, Tlaxiaco, Rio de Tablas, 7,000 ft. (type)

Description: (From plant and flowering ma­terial furnished by Mr. Don B. Skinner, L.A., 6/18/58.) Plant pubcrulous on all external parts; subshrubby, to 20 cm. tall or more, with numerous ascending branches; leaves numerous, subrosulate or somewhat scattered, obovate-cuneate, mucronate, to 35 mm. long and 20 mm. broad, thickish, subpetiolate; petiole thick; blade shallowly concave above, obscurely keeled be­neath; inflorescences several from below the leaves, erect or ascending, to 20 cm. tall; peduncle stout, 4 mm. in diameter at base; lower bracts obovate, mucronate, 30 mm. long, 15 mm. broad, widely spreading; racemes equilateral, each with 4 to 7 flowers; pedicles stout, to 20 mm. long and 3 mm. thick, bibracteolate, bractlets linear-lanceolate, acute, subterete, to 14 mm. long ;sepals subequal, to 14 mm. long, semiterete or somewhat flattened, lanceolate, acute to acuminate, ascending to widely spreading at anthesis; corolla quite large, to 24 mm. long and 14 mm. in basal diameter, 7 to 11 mm. wide at mouth, amphora-shaped, pentagonal; petals sharply keeled on back, apiculate at the some­what spreading tips, with short basal hollow within; carpels to 18 mm. long with the styles, these last long and slender, to 12 mm. long, somewhat divergent at tips; nectaries transversely-lunate-reniform, to 4 mm. broad; trichomes app. 0.1 mm. long. FIs. VI-

Color: Leaves lettuce-green, kildare-grecn be­neath; lower bracts as the leaves; peduncle cosse-green tinged russet-vinaceous; sepals cosse-green; corolla spectrum-red to scarlet at base and middle, with edges and apex of petals conspicuously lemon-yellow; petals inside pale-lemon-yellow; carpels white at base, above light-yellow-green; styles lettuce-green with faint red lines on inner surface; nectaries white to pale-lemon-yellow.

Remarks: Our present novelty is another of Mr. Thomas MacDougall's many discoveries in Oaxaca; its showy red-and-yellow flowers of good size promise to make it a popular garden-ornament. The specific name refers to the shape of the corolla, closely approximating the classic "Amphora' . As a species, this comes near to E. carminea Alexander, which last differs in having an erect, scarcely branching stem, with longer, thinner, undulate-margined leaves, and somewhat smaller flowers darker-red in color.

Comparisons with E. macrantha Standley & Steyermark from Guatemala would also be in order here, except that the latter is not in cultiva­tion at present, and is known to us solely from the very imperfect type-specimen. About the only critical difference we can be certain of is the ventrally pubescent follicles.

With E. carminea and E. harmsii, this new species constitutes a group of related forms within our Section, and Series Echeveria, charac­terized by their rather large flowers and simple trichomes.

Fig. 85. Echeveria amphoralis

a. side-view of corolla, x 2

b. base of calyx, x. 2

c. inside of petal, x 2

d. petal-tip, x 8

e. carpels, x 2

f. nectary, front-view, x 8

g. nectary, side-view, x 8

h. leaf, x 0.4

i. bract, x 0.4

k. greatly enlarged


(1) Sect. IV, ECHEVERIA: foliis et floribus pubescentibus. Type species: E. coccinea (Cav.) DC

Ser. 12, ECHEVERIA: characteribus Sect. similibus. Type species: E. coccinea (Cav.) DC.

© Cactus & Succulent Journal of America, 1958