336 CRASSULACEAE 



8. Dudleya angustiflora Rose. Tulare Dudleya. Fig. 2186. 



Dudleya angustiflora Rose, Bull. N.Y. Bot. Gard. 3: 14. 1903. 



Echeveria angustiflora Berger in Engler & Prantl, Nat. Pflanzenf. ed. 2. 18 a : 477. 1930. 



Caudex very short, mostly simple. Basal leaves lanceolate, 3-4 cm. long, rather rigidly as- 

 cending, pale green and somewhat glaucous ; flowering stem slender, 6-20 cm. high ; cyme with 

 a few spreading branches; pedicels slender, about equaling the flowers; corolla narrow, 10-12 

 mm. long, tinged with red, the segments attenuate. 



Rock outcrops, Arid Transition Zone; southern Sierra Nevada to the San Bernardino Mountains, California. 

 May-July. 



9. Dudleya saxosa (M. E. Jones) Britt. & Rose. Panamint Dudleya. Fig. 2187. 



Cotyledon saxosa M. E. Jones, Contr. West. Bot. No. 8: 28. 1898. 

 Dudleya saxosa Britt. & Rose, Bull. N.Y. Bot. Gard. 3: 15. 1903. 

 Echeveria saxosa Nels. & Macbr. Bot. Gaz. 56: 476. 1913. 



Rootstock stout, short. Basal leaves numerous, forming dense rosettes, ascending, the inner 

 younger leaves glaucous, the outer pale green but not glaucous, narrowly lanceolate, 4-8 cm. 

 long, about 15 mm. wide, semi-terete, rounded on the back and slightly concave on the inner face; 

 flowering stem 15-25 cm. high; stem leaves ovate-lanceolate, slightly cordate at base, ascending; 

 cyme many-flowered, rather open, 6-10 cm. broad; pedicels 10-15 mm. long, erect, slender but 

 rather rigid ; calyx-lobes lanceolate to ovate-lanceolate, about 4 mm. long ; corolla yellow, turn- 

 ing reddish, especially along the midvein in age, 6-8 mm. long; petals oblong-oval, rather 

 abruptly acute. 



Rocky slopes, Sonoran Zones; Panamint and Providence Mountains, Mojave Desert, California. May-June. 



10. Dudleya lanceolata (Nutt.) Britt. & Rose. Lance-leaved Dudleya. Fig. 2188. 



Echeveria lanceolata Nutt. ex Torr. & Gray, Fl. N. Amer. 1: 561. 1840. 

 Cotyledon lanceolata Benth. & Hook, ex S. Wats. Bot. Calif. 1: 211. 1876. 

 Dudleya lanceolata Britt. & Rose, Bull. N.Y. Bot. Gard. 3: 24. 1903. 



Caudex short, simple, bearing a rather loose rosette at the summit. Basal leaves pale green, 

 the inner younger ones glaucous, the outer often glabrous, lanceolate, long-acuminate, 8-15 cm. 

 long, 15-20 mm. wide, flat or slightly concave on the inner surface, slightly rounded on the back; 

 flowering stems 4-6 dm. high, usually tinged with red ; stem leaves lanceolate, acuminate with a 

 broad cordate base; cyme 6-10 cm. broad; pedicels stout, 3-8 mm. long; calyx-lobes broadly 

 ovate, 4 mm. long, acute or obtusish ; corolla yellow, tinged with red, 12-16 mm. long, the seg- 

 ments oblong-lanceolate, acute or somewhat acuminate. 



Dry sandy or gravelly soils, Sonoran Zones; cismontane region, from San Simeon, Monterey County, Cali- 

 fornia, to northern Lower California. May-July. 



Dudleya Brauntonii Rose, Bull. N.Y. Bot. Gard. 3: 24. 1903. Caudex branched, often bearing 6-8 rosettes. 

 Basal leaves pale green and very glaucous, strap-shaped, 10-20 cm. long, 1-2 cm. broad, acute; flowering stem 

 about 3-6 dm. high, pale green; stem leaves ovate, thick, clasping; inflorescence of 3-4 branches, at length elon- 

 gated; pedicels stout, 1-3 mm. long; calyx-lobes 4-5 mm. long, broadly ovate; corolla pale greenish yellow, 12 mm. 

 long, the segments oblong, acute. This is apparently restricted to the vicinity of Los Angeles in the Llysian Hills. 

 It differs from lanceolata principally in the more glaucous leaves and pale flowers. 



Dudleya delicata Rose, Bull. N.Y. Bot. Gard. 3: 24. 1903. This is another form related to lanceolata, 

 with greenish yellow flowers and very glaucous leaves. It differs from D Brauntpmi in its more slender habit, 

 and leaves which taper from the base. Known only from the original collection in Spencer Valley, San Diego 

 County, California. 



Dudleya lurida Rose, Bull. N.Y. Bot. Gard. 3: 22. 1903. Basal leaves bright glossy green and shining at 

 flowering time, becoming bronzed in age, lanceolate-acuminate, 10-15 cm. long 1-2 cm. wide at the middle; 

 flowering stems stout, 3-5 dm. high, tinged with purple; calyx-lobes ovate acute 5-6 mm long reddish; corolla 

 reddish. Coast Ranges, Santa Barbara to Orange County, California. It differs from D. lanceolata in the bright 

 glossy green leaves. 



11. Dudleya grandiflora Rose. Large-flowered Dudleya. Fig. 2189. 



Dudleya grandiflora Rose, Bull. N.Y. Bot. Gard. 3: 16. 1903. 



Echeveria grandiflora Berger in Engler & Prantl, Nat. Pflanzenf. ed. 2. 18* : 478. 1930. 



Caudex short and very thick, crowned by a dense rosette. Basal leaves glaucous when 

 young, pale green in age, strap-shaped, broadest at the base and gradually tapering to the apex, 

 10-15 cm. long, 1-2 cm. broad just above the base; flowering stem stout, 3-5 dm. high, bright 

 red especially above ; stem leaves scattering, ovate-acuminate, obscurely cordate at base ; cymes 

 with the main branches ascending, 10-15 cm. wide; pedicels, at least the lower, 10-15 mm. long; 

 calyx reddish, the lobes ovate, acute, 4-5 mm. long; corolla 10-12 mm. long, greenish yellow, 

 tinged with red in age, the segments oblong-lanceolate, erect, with only the acute apex spreading. 



Sandy or gravelly slopes, Sonoran Zones; desert slopes of the San Bernardino and San Jacinto Mountains, 

 southern California. March-May. 



12. Dudleya Abramsii Rose. Abrams' Dudleya. Fig. 2190. 



Dudleya Abramsii Rose, Bull. N.Y. Bot. Gard. 3: 14. 1903. 



Echeveria Abramsii Berger in Engler & Prantl, Nat. Pflanzenf. ed. 2. 18": 477. 1930. 



Basal leaves in a dense rosette crowning the short thick caudex, lanceolate, tapering from the 

 base to the apex, acuminate, 2 cm. long, pale green and somewhat glaucous ; flowering stems 

 slender 6-10 dm. high, naked below, bearing a few ovate acute bracts above; inflorescence 

 2-3-branched ; flowers subsessile ; calyx 3-mm. long, the lobes triangular-lanceolate; corolla 

 yellow, with deep red stripes on the back, 7-10 mm. long. 



Rock crevices, Upper Sonoran Zone; San Jacinto Mountains, southern California, to northern Lower Cali- 

 fornia. May-July. 



