338 CRASSULACEAE 



narrow sessile leaves not clasping at base. Inflorescence paniculate or cymose. Calyx 

 5-lobed, the lobes ovate, short. Corolla campanulate, not angled, white, yellowish or red, 

 the tube short, the lobes broad, thin and spreading. Stamens 10, borne on the corolla 

 tube. Carpels 5, united below, generally spreading above. [Name Greek, in reference 

 to the pencil-shaped leaves of the type species.] 



A genus of about 10 species, restricted to the coastal region of California and Lower California. Type spe- 

 cies, Stylophyllum edule (Nutt.) Britt. & Rose. 



Leaves flattened, especially the lower half. 



Leaves viscid. 1. 5". viscidum. 



Leaves not viscid. 



Calyx-lobes obtuse at apex. 2. S. albidum. 



Calyx-lobes acute. 3. 5". insulare. 



Leaves terete or nearly so, above the base. 



Calyx-lobes acute. 4. 5". edule. 



Calyx-lobes rounded or obtuse. 



Inflorescence in a congested cyme. 5. 5". nudicaule. 



Inflorescence open. 6. 5". Orcuttii. 



1. Stylophyllum viscidum (S. Wats.) Britt. & Rose. Sticky Stylophyllum 



or Pencil Leaf. Fig. 2196. 



Cotyledon viscida S. Wats. Proc. Amer. Acad. 17: 372. 1882. 

 Stylophyllum viscidum Britt. & Rose, Bull. N.Y. Bot. Gard. 3: 33. 1903. 

 Echeveria viscida Berger in Engler & Prantl, Nat. Pflanzenf. ed. 2. 18 a : 480. 1930. 



Caudex stout, short, usually branched with several rosettes. Basal leaves narrowly lanceo- 

 late, acuminate, obtusely triquetrous, 6-9 cm. long, about 1 cm. wide, viscid; flowering stems 

 3-5 dm. high, stout ; stem leaves similar to the basal but smaller ; flowers in a compound cyme 

 5-8 cm. broad, and often with a few in the leaf axils below the cyme ; pedicels 1-4 mm. long ; 

 calyx-lobes ovate-lanceolate, acute, 3-4 mm. long; corolla reddish, 8-10 mm. long; stamens and 

 styles about equaling the corolla-lobes. 



Rocky banks, Sonoran Zones; near the coast in Orange and San Diego Counties. California. June-July. 



Stylophyllum virens Rose, Bull. N.Y. Bot. Gard. 3: 34. 1903. Caudex stout, branched, more or less 

 elongated. Leaves of the rosettes spreading, shining, not glaucous, 5-9 cm. long, 10-15 mm. wide at the base, 

 gradually tapering to the apex, flattened; flowering stem stout, 3-5 dm. high; calyx-lobes ovate, acute; corolla 

 cream-colored tinged with red, the tube scarcely equaling the calyx-lobes. Rocky ledges, San Clemente Island, 

 southern California. 



2. Stylophyllum albidum Rose. White Stylophyllum. Fig. 2197. 



Stylophyllum albidum Rose, Bull. N.Y. Bot. Gard. 3: 34. 1903. 



Echeveria albida Berger in Engler & Prantl, Nat. Pflanzenf. ed. 2. 18 a : 480. 1930. 



Caudex stout, simple or branched. Basal leaves in a dense rosette, ligulate, very glaucous, 

 4 cm. long, about 1 cm. wide at the base, very thick, the upper one-third nearly terete ; flowering 

 stems 3 dm. high, reddish, their leaves scattered, lanceolate, acuminate; inflorescence cymose- 

 paniculate, somewhat flattened; calyx-lobes ovate, obtuse; corolla 7 mm. long, reddish, its lobes 

 lanceolate, acute ; carpels spreading above. 



Rock ledges, San Clemente Island, southern California. June. 



3. Stylophyllum insulare Rose. Catalina Stylophyllum. Fig. 2198. 



Stylophyllum insulare Rose, Bull. N.Y. Bot. Gard. 3: 34. 1903. 



Echeveria insularis Berger in Engler & Prantl, Nat. Pflanzenf. ed. 2. 18 a : 480. 1930. 



Caudex stout and woody, often 6-8 cm. thick. Basal leaves spreading, 10-15 cm. long, 10-15 

 mm. broad remaining about the same width to above the middle, fleshy, flattened below, sub- 

 terete toward the apex, glaucous, at least when young ; flowering stems stout, 25-40 cm. high ; 

 inflorescence paniculate-cymose ; calyx-lobes ovate, acute ; corolla 7 mm. long, reddish, the lobes 

 lanceolate, acute, spreading. 



Rocky cliffs, Santa Catalina Island, southern California. May-June. 



Stylophyllum Hassei Rose, Bull. N.Y. Bot. Gard. 3: 35. 1903. Closely resembles 5. insulare in corolla 

 and calyx characters, but plant more slender, and the branches of the inflorescence few and elongated. Rocks 

 along the shore, Santa Catalina Island. 



Stylophyllum Traskiae Rose, Bull. N.Y. Bot. Gard. 3: 34. 1903. Caudex stout, clothed with the withered 

 leaf bases. Basal leaves in close rosette, very glaucous, strap-shaped, 4-5 cm. long, 8-10 mm. wide at base, acute; 

 flowering stems about 2 dm. high, reddish, their leaves small and scattered; inflorescence a small compact flat- 

 topped cyme; calyx-lobes broadly ovate, acutish or somewhat obtuse; corolla bright yellow, 8 mm. long, lanceolate, 

 acute, spreading. Sea cliffs, Santa Barbara Island, southern California. 



4. Stylophyllum edule (Nutt.) Britt. & Rose. Nuttall's Stylophyllum. Fig. 2199. 



Sedum edule Nutt. in Torr. & Gray, Fl. N. Amer. 1 : 560. 1840. 



Cotyledon edulis Brewer, Bot. Calif. 1: 211. 1876. 



Stylophyllum edule Britt. & Rose, Bull. N.Y. Bot. Gard. 3: 36. 1903. 



Echeveria edulis Berger in Engler & Prantl, Nat. Pflanzenf. ed. 2. 18 a : 481. 1930. 



Caudex stout, bearing a single or few rosettes. Basal leaves nearly terete above the base, 

 4-8 cm. long, pale green and somewhat glaucous; flowering stems rather stout, 3-5 dm. high, 

 bearing scattered linear leaves from the base to the open paniculate inflorescence; pedicels 1-3 



