Echeveria ballsii spec. nov.

Pertinens Ser. RACEMOSAS*; caules breves; foliis rosulatis, obovato-oblongis ad 35 mm. longis; inflorescentiis numerosis, racemosis, ascendentibus, oblongis; pedicellis ad 10 mm. longis; sepalis inaequalibus, patentibus; corollis 12 mm. longis, coccineis.

Holotype: CAS:297644. From plant grown in Strybing Arboretum, Golden Gate Park.

Occurrence: Colombia: Dept. Boyaca, near Siachoque (Type-material), also US: 1779205 & UC:682828.

FIG. 26. Echeveria ballsii. (upper right) flowering plant. (upper left) flowering branches. (lower left) rosettes of leaves.

Description: (from living material as cited above) Plant glabrous; stems evident, but short, several from one base; leaves thick, turgid above, oblong-obovate, acutish, to 35 mm. long, about 10 mm. broad, narrowed to less than 5 mm. at base; inflorescences one or two to each rosette, 25 to 30 cm. tall, equilaterally racemose but sometimes unilateral from one-sided lighting; peduncle erect; lower bracts ascending to spread­ing, narrowly oblong-obovate, to 1 5 mm. long; flowers about 10, nodding; pedicels to 10 mm. long, their bractlets slender, to 5 mm. long; sep­als subequal, longest to 8 mm. long, flat, acumi­nate, ascending; corolla nearly straight, to 12 mm. long, about 8 mm. in diameter near base;

petals spreading at apex, inside with basal hol­low; nectaries oblique, trapezoid-reniform, to 2 mm. broad. FIs.VIll—

Color: Leaves cosse-green; bracts chrysolite-green; pedicels onion-skin-pink; sepals chryso­lite- to absinthe-green; corolla peach-red to scar­let; petals pale-yellow in shade, pinard-yellow inside; carpels maize-yellow to buff-pink; nec­taries whitish.

Fig. 27. Echeveria ballsii E. Walther, Explanation: (a) flower, x 3; (b) flower from below, x 2; (c) inside of petal, x 3; (d) apex of petal, x 8; (e) carpels, x 8; (f) nectary, side view, x 8; (g) nectary, front view, x 8; (h) leaf, x 0.4; (i) bract, x 0.4.

Remarks: Most Colombian material seen be­longed to the ubiquitous E. quitensis, from which our new species differs in being almost stemless and in its small leaves. The Mexican E. bella Alexander probably comes closest to E. ballsii, but is separated by a distance of about 1800 miles; it differs further in its leaves being not over 18 mm long, and only 2 to 4 mm broad. We regret that we have been unable to study any material of E. bella, the type being unavailable.

We take pleasure in dedicating this novel spe­cies to Mr. E. K. Balls, now of the staff of the Santa Ana Botanic Garden at Claremont, California.


*) Series Racemosae (Baker, Berger, pro parte); plantae glabrae, caudicibus brevibus vel nullis; radicibus haud fusiformibus; inflorescentiis aequilateralibus, racemosis vel spicatis, pedicellis bibracteolatis.

© Cactus & Succulent Journal of America, 1958