Part 1, 1905] CRASSULACEAB 13 



quite to the base, acute ; stamens 10, the five opposite the sepals free to the base ; the other 

 5 borne on the petals, each with two broad truncate appendages at its base ; scales broad ; 

 carpels 5, erect, free to the base. 



Type locality : San I,uis Potosi, Mexico. 

 Distribution : Known only from the type locality. 



7. Pachyphytum aduncum (Baker) Rose. 



Cotyledon .adunca Baker, in Saund. Ref. Bot. 1 : pi. 60. 1869. 

 Pachyphytum roseum Baker, loc. cit. as syn. 1869. 

 Echeveria adunca Otto, Hamb. Gart. 29 : 6. 1873. 



Caulescent, 6-12 dm. high, glabrous throughout. Leaves oblong, very thick and tur- 

 gid, 3-5 cm. long; flowering branches about 3 dm. long, nearly naked; inflorescence a 

 secund raceme, 6-18-flowered, strongly curved ; lower peduncles erect, much elongated ; 

 caly^x-lobes equal, lanceolate, 9 mm. long ; corolla scarcely 5-angled, 15 mm. long, yellowish, 

 tinged with red. 



Type locality : Mexico. 



Distribution : Mexico, definite stations not known. 



Illustration : Baker, loc. cit. 



7. ECHEVERIA DC. Prodr. 3: 401. 1828. 



Acaulescent or caulescent ; leaves fleshy but usually broad and flat. Inflorescence 

 usually a simple loose spike or raceme, or sometimes paniculate, never a flat cyme. Calyx 

 deeply 5-parted, the sepals usually elongated and narrow, unequal, erect or spreading. 

 Corolla 5-angled, usually strongly so, very broad at base, the lobes united below (some- 

 times appearing free?), very thick and nerveless, erect but often spreading at tip, broad 

 and comparatively short ; stamens 10, 5 attached near the middle of the petals, 5 either free 

 or at least attached lower down on corolla ; anthers oblong ; scales large, thick, short and 

 truncate or depressed in center; carpels free (sometimes described as united), oblong, 

 erect, tapering into slender styles ; ovules and seeds many. 



Type species, Cotyledon coccinea Cav. 



1. Sepals linear to ovate. 



a. Flowers axillary, arranged in loose spikes or equilateral racemes. 

 * Flowers in spikes. 



Not caulescent ; glabrous throughout. 

 lycaves broad ; flowers many. 



lycaves narrow, less than 1 cm. broad ; flowers about 7. 

 Caulescent ; pubescent throughout. 

 I^eaves obovate-spatulate. 

 I/Caves oblanceolate-spatulate. 

 ** Flowers in racemes. 

 Caulescent. 



Inflorescence compound below ; corolla pale. 

 Inflorescence generally simple throughout ; corolla bright 

 colored. 

 Pubescent throughout. 

 I^eaves obtuse. 

 Leaves acute. 

 Glabrous throughout. 

 Ivcaves scattered. 

 Ivcaves densely rosulate. 

 Sepals ascending. 



Stems roughened ; stem and leaves not glaucous. 

 Flowering stems and sepals granulate. 

 Flowering stems and sepals not granulate. 



I^eaves broad, obovate or spatulate. 10. E. muUicaulis. 



lycaves narrow, linear-lanceolate. 11. E. Goldmani. 



Stems not roughened ; stem and leaves glaucous. 12. E. australis. 

 Sepals widely spreading. 



Flowers few in a short raceme. 13. E. nodulosa. 



Flowers many in a long lax raceme. 



I^eaves not narrowed at base. 14. E. canaliculata. 



Iveaves much narrowed at base. 15. E. atropurpurea. 



Not caulescent. 

 Iveaves colored. 



Sepals spreading at right angles to the corolla, or even re- 

 flexed ; leaves narrow. 16. E. lurida. 

 Sepals ascending, never reflexed ; leaves broad. 



(See no 



1. 29.) 



1. 

 2. 



E. 



E. 



■mucronata. 

 sessiliflora. 



3. 

 4. 



E. 

 E. 



pubescens. 

 coccinea. 



5. 



F 



E. 



hnguaefolia. 



6. 



7. 



E. 

 E. 



pulvinaia. 

 Pringlei. 



8. 



E. 



nuda. 



9. 



E. 



moniana. 



