Part 1, 1905] CRASSULACEAB 41 



narrow at base ; inflorescence rather short, more or less flat-topped ; pedicels slender, 4-10 

 mm. long; calyx-lobes triangular, acute or acuminate; corolla-segments lanceolate, acute, 

 8-10 mm. long, reddish or dr5dng so. 



Type locality : Vaca Mountains, California. 

 Distribution : Inner coast range,, central California. 



31. Dudleya Purpusi (Schum.) Britton & Rose, Bull. N. Y. 



Bot. Gard. 3 : 20. 1903. 



Echeveria Purpusi Schum. Gartenflora 45 : 608. 1896. 

 Cotyledon Purpusi Nichols. Diet. Gard. Suppl. 263. 1900. 



Pale-green, somewhat glaucous; tufted. Basal leaves 4-7 cm. long, 2 cm. wide or less, 

 rhombic, broadest near the middle, sharply acuminate ; flowering branches 1-2 dm. tall, 

 their leaves lanceolate, acute, 2 cm. long or less, sessile, numerous; cyme 4-8 cm. broad; 

 pedicels rather stout, longer than the flowers ; flower-buds ovoid, acuminate, longer than 

 thick; calyx- segments ovate, acutish, about 5 mm. long, one-third as long as the lemon- 

 j^ellow corolla ; corolla-segments narrowly lanceolate, acuminate, separate nearly to the base. 



Type locality : California. 



Distribution : Mountains of middle California. 



Illustrations 1 Schumann, loc. cit. f. 97 ; Gard. Chron. 20 : / 123 ; Bot. Mag. pi. 7713. 



32. Dudleya Sheldoni Rose, Bull. N. Y. Bot. Gard. 3 : 20. 1903. 



Acaulescent. Leaves lanceolate to ovate-lanceolate, acute, very glaucous, 4-5 cm. long, 

 somewhat thickish at base but drying thin and papery ; flowering stems rather slender, 

 16-20 cm. high, purplish, leafy to the base ; lower stem-leaves linear-lanceolate, 4 cm. long, 

 the upper ones ovate, acute ; inflorescence a rather compact panicle ; pedicels rather slender, 

 sometimes 10 mm. long ; calyx-lobes reddish, ovate, acute ; corolla yellow, 10-11 mm. 

 long, the lobes sharply acute, spreading at tip, free nearly to base ; stamens attached just 

 above the base of the corolla, about two-thirds as long as the lobes ; carpels 5, erect. 



Type locality : North base of Mt. Tamalpais, California. 

 Distribution : Type locality and vicinity. 



33. Dudleya robusta Britton, Bull. N. Y. Bot. Gard. 3: 21. 1903. 



Acaulescent. Basal leaves numerous, ascending, lanceolate, acuminate, light-green, 

 sometimes slightly glaucous, 10-15 cm. long, 1.5-2.5 cm. wide; flowering branches stout, 

 leafy to or nearly to the base, 4-5 dm. high, erect-ascending, their leaves lanceolate to 

 ovate-lanceolate, sagittate, the upper ones very small, the lower 4-6 cm. long; cyme many- 

 flowered, about 10 cm. broad; pedicels, or some of them, at length 1-1.5 cm. long, white- 

 glaucous; calyx 5-6 mm. long, deeply cleft, its lobes ovate, sharply acute, white-glaucous; 

 corolla about 1.3 cm. long, orange, cleft to below the middle, the lobes acute. 



Type locality : Southern California. 

 Distribution : Southern California. 



34. Dudleya Parishii Rose, Bull. N. Y. Bot, Gard. 3: 21. 1903. 



Acaulescent. Basal leaves in a rosette, lanceolate, acuminate, not very thick for this 

 genus, not at all glaucous, becoming red ; flowering stems rather stout, reddish, 3^ dm. 

 high; lower leaves narrowly lanceolate, upper ones smaller, ovate, only slightly clasping at 

 base ; inflorescence paniculate, somewhat flat-topped, the branches spreading ; pedicels 

 rather slender, 4-8 mm. long; calyx-lobes broadly ovate, acute (in herbarium specimens 

 sharply acute) ; corolla about 10 mm. long, rather pale orange, drying quite reddish. 



Type locality : Near San Bernardino, California. 

 Distribution : Southern California and Arizona. 



Z^. Dudleya cymosa (lyemaire) Britton & Rose, Bull. N. Y. 



Bot. Gard. 3 : 21. 1903. 



Kcheveria cymosa Lemaire, Rev. Hortic. 1858 : 439. 1858. 

 Cotyledon cymosa Baker, in Saund. Ref. Bot. 1 : pi. 68. 1869. 



Acaulescent, at least so in all specimens seen. Leaves forming a very dense rosette, 

 rather thin for the genus, oblong-lanceolate, 10-12 cm. long, broadest about one-third the 



