Desert Dudleya

Dudleya delicata Rose, Bull. N. Y. Bot. Gard. 3 : 24. 1903
Leaves in dense rosettes, in clusters of 4-6 or more, erect or somewhat spreading rather narrow, broadest at the base, the outer ones 2 cm. broad, the inner ones considerably smaller and narrower, gradually tapering to an acute apex, 6-8 cm. long, fleshy but flattened, very glaucous ; flowering stems slender, about 20 cm. long, the leaves ovate, acute ; pedicels very short, 2-4 mm. long ; calyx-lobes equal, ovate, acute, not glaucous ; corolla rather narrow, greenish-yellow, the lobes slightly spreading at tip, obtuse or barely acutish, oblong, united at base into a short tube barely 2 mm. long.
Type locality : Spencer Valley, near Julian, San Diego County, California.
Distribution : Southern California.

Dudleya aloides Rose, Bull. N. Y. Bot. Gard. 3 : 15. 1903
Tufted, acaulescent. Leaves numerous, erect, rigid, very narrow, thick, semiterete, or the upper part subterete, 7-12 cm. long, 10-15 mm. broad at base, gradually tapering to the apex, very pale, hardly glaucous, often spotted with red; flowering stems 2-3 dm. long, reddish, as also the branches and pedicels ; stem-leaves ovate, acute, slightly clasping ; inflorescence paniculate ; pedicels rather slender, 18-20 mm. long, ascending; calyx deeply 5-cleft, the lobes triangular-lanceolate, 4 mm. long, acute; corolla broad, yellow, 10 mm. long, the lobes acute.
Type locality : San Felipe, San Diego County, California.
Distribution : Southern California.

Dudleya grandiflora Rose, Bull. N. Y. Bot. Gard. 3 : 16. 1903
Caudex very thick, crowned by a dense rosette. Basal leaves strap-shaped, slightly broadened at insertion and gradually tapering from the base to apex, rather thin, 1-1.5 dm. long, 1-2 cm. broad just above the base, very glaucous on both sides, especially when very young; flowering stalk 3-5 dm. long, bright-red especially above, bearing scattered ovate acuminate leaves ; inflorescence rather compact, consisting of a few upright secund racemes ; pedicels, especially the lower ones, elongated, 1-1.5 cm, long; caljrx usually red, deeply 5-lobed, the lobes ovate, acute, about half the length of the corolla; corolla greenishyellow, becoming reddish in age, 10 mm. long, erect except the spreading acute tips, its segments united at the bas^ into a very short tube 2 mm. long; stamens shorter than the corolla, attached to its base ; carpels erect, distinct.
Type locality : Whitewater, near Banning, California. Distribution : Known only from the type locality.