STONECROP FAMILY 337 



13. Dudleya caespitosa (Haw.) Britt. & Rose. Sea Lettuce. Fig. 2191. 



Cotyledon caespitosa Haw. Misc. Nat. 180. 1803. 

 Cotyledon linguiformis R. Br. in Ait. Hort. Kew. ed. 3. 2: 109. 1811. 

 Cotyledon lingula S. Wats. Proc. Amer. Acad. 14: 293. 1879. 

 Dudleya caespitosa Britt. & Rose, Bull. N.Y. Bot. Gard. 3: 27. 1903. 



Caudex branched bearing a dense cluster of rosettes. Basal leaves bright green, shining or 

 somewhat glaucous, ovate to oblong-lanceolate, very fleshy and rigid, 3-6 cm. long, 2 cm. wide, 

 gradually narrowed from the base ; flowering stem 2-3 dm. high, usually reddish ; stem leaves 

 very thick, clasping, ovate or the lower oblong-ovate ; inflorescence a compact cyme ; pedicels 

 short, the longest 3-4 mm. ; calyx-lobes triangular, acutish ; corolla pale yellow, 8-10 mm. long, 

 the lobes acutish or obtuse. 



Bluffs along the coast, Upper Sonoran and Transition Zones; central California. Dudleya congesta, D. com- 

 pacta, D. Eastwoodiae (Rose, Bull. N.Y. Bot. Gard. 3: 25-27. 1903) all seem to be merely minor variations 

 of this common maritime species. June-July. 



14. Dudleya farindsa (Lindl.) Britt. & Rose. Powdery Dudleya. Fig. 2192. 



Echeveria farinosa Lindl. Journ. Hort. Soc. 4: 292. 1849. 

 Cotyledon farinosa Baker in Saund. Ref. Bot. 1 : pi. 71. 1869. 

 Dudleya farinosa Britt. & Rose, Bull. N.Y. Bot. Gard. 3: IS. 1903. 



Caudex stout, short, bearing a single or usually several rosettes. Basal leaves closely tufted, 

 densely white-mealy, lingulate, acute, flat on the upper surface, slightly rounded on the back, 

 12-15 mm. wide, 3-5 cm. long; flowering stems stout, usually reddish, leafy; stem leaves ovate- 

 triangular, 1-2 cm. long, concave, deeply sagittate, the basal lobes often turned upward ; cyme 

 5-7 cm. broad; pedicels rather slender, 4-6 mm. long; calyx-lobes broadly lanceolate; corolla 

 cream-yellow, 10 mm. long, its lobes obong, acute. 



Bluffs along the seashore, Upper Sonoran and Humid Transition Zones; northern and central California. 



Dudleya septentrionalis Rose, Bull. N.Y. Bot. Gard. 3: 26. 1903. Caudex branches bearing several 

 crowded rosettes of leaves, these densely white-mealy, ovate, thick, 20—25 mm. broad; flowering stem stout; cyme 

 compact; calyx-lobes ovate, acute; corolla pale greenish yellow, the lobes broad, obtuse. Rock crevices, along the 

 coast, Del Norte County, California. 



15. Dudleya Greenei Rose. Greene's Dudleya. Fig. 2193. 



Dudleya Greenei Rose, Bull. N.Y. Bot. Gard. 3: 17. 1903. 



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



Cespitose, the caudex branched, stout, bearing several rosettes. Basal leaves oblong-oblanceo- 

 late, usually broadest above the middle, 6-8 cm. long, 15-20 mm. wide, acute, densely pulverulent 

 when young, becoming reddish tinged in age ; flowering stems stout, 3-4 dm. high ; stem leaves 

 ovate-lanceolate, cordate at base, spreading ; branches of the cyme secund ; pedicels stout, 1-4 

 mm. long; calyx-lobes triangular-lanceolate, 4 mm. long; corolla light yellow, 10-12 mm. long, 

 its tube 2 mm. long. 



Rocks near the sea, Upper Sonoran Zone; Santa Cruz, Santa Rosa, and San Miguel Islands, southern Cali- 

 fornia. May-Aug. 



16. Dudleya candelabrum Rose. Candelabrum Dudleya. Fig. 2194. 



Dudleya candelabrum Rose, Bull. N.Y. Bot. Gard. 3: 17. 1903. 



Echeveria candelabrum Berger in Engler & Prantl, Nat. Pflanzenf. ed. 2. 18 a : 476. 1930. 



Basal leaves forming a dense broad rosette, somewhat glaucous, oblong-lanceolate, broadest 

 near the base, 10-15 cm. long, flowering stem 3-5 dm. high, stout; stem leaves ovate-lanceolate, 

 acuminate ; inflorescence a widely branched panicle, often 20-25 cm. broad ; pedicels stout, 1^4 

 mm. long ; calyx 5-7 mm. long, the lobes oblong-lanceolate, acute ; corolla 5-9 mm. long, lemon- 

 yellow. 



Rock crevices, Upper Sonoran Zone; Santa Cruz Island, California. May-July. 



17. Dudleya Cotyledon (Jacq.) Britt. & Rose. First Dudleya. Fig. 2195. 



Sedum Cotyledon Jacq. f. Eclog. PI. 1: 27. 1811. 



Cotyledon calif ornica Baker in Saund. Ref. Bot. 1: pi. 70. 1869. 



Echeveria californica Baker, loc. cit. as syn. 



Dudleya Cotyledon Britt. & Rose, Bull. N.Y. Bot. Gard. 3: 28. 1903. 



Dudleya Helleri Rose, Bull. N.Y. Bot. Gard. 3: 27. 1903. 



Caudex very short, bearing one to few rosettes. Basal leaves many, linear-lingulate, pale 

 green and slightly glaucous, 5-10 cm. long, 15-20 mm. wide, acuminate, widened at base; flower- 

 ing stems stout, 4-5 dm. high, glaucous ; stem leaves many, ovate, sagittate, clasping, the lower 

 about 2 cm. long ; inflorescence cymose-paniculate, up to 25 cm. long ; pedicels stout, 4-10 mm. 

 long ; calyx-lobes triangular-ovate, white farinose ; corolla yellow, 10 mm. long, the lobes ob- 

 long-lanceolate, acute. 



Usually in sandy soil, Upper Sonoran and Transition Zones; near the coast, central California. May-July. 



5. STYLOPHYLLUM Britt. & Rose, Bull. N.Y. Bot. Gard. 3:33. 1903. 



Perennials with a simple or branched rootstock, crowned by rosettes of succulent 

 leaves. Basal leaves elongated, linear, terete or flattened. Flowering stems with long 



