Fig. 11. (6 K) Echeveria Craigiana spec. nov., inflorescence, app. x 1. (6 L) Flowering plant on right, app. x 0.5


New Species of Echeveria

By ERIC WALTHER


6. Echeveria Craigiana spec. nov.


"Series Amoenae pertinens; plantae glabrae radicibus fibrosis, caudibus brevibus; foliis 30 vel 40, conferte rosulatis, 7-11 cm. longis, 2 cm. latis, haud papillosis, subteretibus, oblongo-linearibus, acutis, apice subulato-aristatis; inflorescentiis usque 80 cm. altis, elongato-paniculatis, pedunculis crassis, erectis; bracteis semiteretibus, usque 5 cm longis, acutis; pedicellis usque 2 cm. longis, bracteolatis; sepalis paulum patentibus, usque 9 mm. longis, acutis; corollis rubris, cylindrico-campanulatis; petalis subcarinatis, ad basin gibbosis, apice recurvatis; squamis crassis, truncatis."


Occurrence: MEXICO. Southwest. Chihuahua.


Type: CA.; Craig & Lindsay 1939/3; near Barranca de Rio Urinque (branch of Rio Fuerte), at lower level back from barranca among pines and ferns, with Graptopetalum occidentale.


References: Cactus Journal 15(4): 52, 1943; George Lindsay, "Plant Hunting in the Tarahumara Mountains of Chihuahua, Mexiko."



Fig. 12. (6 M) Echeveria Craigiana spec. nov. rosette, app. x 1.


Description: Plant glabrous; stem short or none, branching only in old specimens; rosettes very dense; leaves 30 to 40, thick, semiterete, linear-oblong, 8 to 11 cm. long, to 2 cm. broad, flat above, beneath rounded and faintly keeled near apex, acute and shortly subulate-aristate, not papillose but slightly glaucous, upcurved from the middle; inflorescences 2 or 3, to over 50 cm. tall; peduncle stout, erect, to 10 mm. thick at base; bracts few, somewhat spreading, semiterete, oblong, acute, aristate-mucronate, to 5 cm. long and 10 mm. broad, faintly keeled near apex both above and beneath, at base short­ly spurred, readily detachable; panicle elongate, with numerous short, angularly spreading branches, these at times bifid; pedicels to 2 cm. long, rigid, bracteolate when young, only slight­ly thickened below calyx; sepals much connate at base, slightly but distinctly spreading, subequal, longest to 9 mm. long, oblong-deltoid, acute, connivent after anthesis; corolla tubular-campanulate, to 11 mm. long and 13 mm. in diameter when fully expanded, basal diameter 7 mm.; petals bluntly keeled, at base gibbose and with distinct cavity within, strongly recurved at apex; carpels 8 mm. long; stamens slightly longer; nectaries 2 mm. wide, thick, trans­versely trapezoid. Flowers October-November.


Color: Leaves sorghum-brown to natal-brown, glass-green at the shaded base; peduncle pale-pinkish-cinnamon to light-russet-vinaceous ; bracts dark-olive-buff, to army-brown above; pedicels light-corinthian-red; sepals rainette-green to light-corinthian-red; corolla rose-doree, inside jasper-red; carpels whitish; styles orange-vinaceous; nectaries whitish.


Remarks: We take pleasure in naming this new species in honor of its co-discoverer, Dr. R. T. Craig of Baldwin Park, Calif. The speci­men here described was grown by Jack Whitehead at the University of California Botanic Garden at Berkeley, California.


E. Craigiana is a most unusual species, both in its morphological characters and geographical distribution. In its paniculate inflorescence, small flowers and appressed sepals it recalls E. amoena and its allies, while in foliage and flower-color it resembles the Bolivian E. chilonense (E. Whitei) in which latter, however, the panicle becomes a simple raceme at least above. Echeveria paniculata et all. too comes to mind, but these differ in having at least their uppermost flowers borne singly on the pseudo-pedicels, and in usually having fleshy, thickened roots. Provisionally at least we are inclined to place this new species into our Series Amoenae, where it would come nearest to E. linguaefolia, which differs obviously in its evident, usually branching caudex, thick, blunt, green leaves and bracts, a narrower, pendent-spreading pan­icle with shorter, few-flowered branches and paler, thinner petals; its .stamens too are unusu­ally long, nearly as long as the petals, which last have scarcely any nectar-cavity within at base.



Fig. 13. (6) Echeveria Craigiana details:

6a Leaf, app. x 0.4

6b Leaf, sidevicw, app. x 0.4

6c Bract, app. x 0.4

6d Corolla, app. x 2

6e Calyx from below, app. x 2

6f Single petal, seen inside, app. x 2

6g Apex of petal, app. x 4

6h Carpels, app. x 2

6i Nectary, app. x 8 (side-view)

6j Nectary, app. x 8 (front-view)


© Cactus & Succulent Journal of America, 1952