Part 1, 1905] CRASSULACBAE 3^ 



the corolla; petals white, in old specimens becoming reddish, broad and obtuse but with a 

 small tip below the apex, 3 mm. long ; stamens about two-thirds the length of the corolla ; 

 styles short ; scales rather prominent. 



Collected by Dr. E. Palmer at Concepcion del Ore, Zacatecas, in 1902 {no. 512, type) and in 

 1904 {no. 449). Both specimens have flowered in Washington. 

 Perhaps nearest V. Pringlei, but with much smaller flowers. 



8. ViUadia minutiflora Rose, Bull. N. Y. Bot. Gard. 3: 4. 1903. 



Perennial, with a woody or frutescent base, sending up from below numerous simple 

 ascending or erect branches 1-2 dm. tall, terminating in an open spike or raceme, or a very 

 narrow compact panicle. Leaves very numerous, ascending, linear in outline, perhaps 

 turgid and terete in fresh specimens, 6-10 mm. long, about 1 mm. wide, obtuse, projecting 

 below the insertion at base, pubescent with short stiff hairs ; flowers sessile or subsessile, 

 either solitary and axillary or borne in short one-sided spikes; sepals somewhat unequal, 

 1-2 mm. long, distinct; corolla white, 3 mm. long, its segments united at base; stamens 

 shorter, borne on the corolla-tube ; appendages rounded at apex, produced below into a 

 slender stalk ; carpels erect, short ; Styles short, spreading or even hooked. 



Type locality : Sierre de San Felipe, Oaxaca, Mexico. 

 Distribution : Known only from the type locality. 



9. Villadia ramosissima Rose, Bull. N. Y. Bot. Gard. 3 : 5. 1903. 



Shrubby and much branched at base, the branches reddish, glabrous, at fi.rst erect, but 

 in age spreading over other plants, Leaves rigid, set nearly at right angles to the stems, 

 turgid and nearly terete, in section ovate to oblong, glabrous ; sterile branches short and 

 closely covered with pale-gray or purplish leaves ; inflorescence a loose leafy spike, each 



♦ 



flower borne in the axil of a leaf and with a smaller leaf on each side ; sepals green, dis- 

 tinct, ovate, acute, 2 mm. long ; corolla campanulate, white or with a pinkish tinge (in 

 cultivated specimens), its tube short, but very distinct, the lobes acute, 4 mm. long; 

 stamens 10, borne on the corolla-tube, much shorter than the petals ; anthers purplish ; 

 appendages conspicuous and yellow, 1 mm. broad; carpels erect (at least when young), 

 distinct. 



Type locality: lyimestone hills near Tehuacan, Puebla, Mexico. 

 Distribution : Puebla ; Oaxaca. 



10. Villadia squamulosa (S. Wats.) Rose, Bull. N. Y. 



Bot. Gard. 3: 5. 1903. 



Cotyledon parviflora squamulosa S. Wats. Proc. Am. Acad. 22 : 473. 1887. 

 Sedum. squamulosum S. Wats. loc. cit. as synonym. 



Perennial, glabrous throughout. Stems slender, branching at base, erect or ascending, 

 1-1.5 dm. long; leaves linear, 1-1.5 cm. long; flowers sessile or short-pedicelled, either 

 single and axillary, or in small clusters ; corolla- segments rose-colored, ovate, acute, 2-3 

 mm. long, about twice as long as the sepals ; appendages very large, yellow, 1 mm. long 

 or more, thickened above. 



Type locality : Potrero and Mapula Mountains, twenty miles south of Chihuahua, Mexico. 

 Distribution : Chihuahua. 



11. Villadia parviflora (Hemsl.) Rose, Bull. N. Y. 



Bot. Gard. 3:5. 1903. 



* 



Cotyledon parviflora Hemsl. Diag. PI. Nov. 1 : 9. 1878. 



Perennial by somewhat fleshy roots. Stems herbaceous, very strict, in flower somewhat 

 nodding at the tips, more or less branching at base, in large plants sometimes branching 

 near the middle, the branches also erect, leafy to the base ; leaves erect, closely set and 

 overlapping, terete above, semi-terete below, acute, at base slightly projecting below the in- 

 sertion ; inflorescence like an interrupted leafy spike, each leaf subtending 1-3 flowers ; 

 sepals equal, green, slightly roughened; corolla white tinged with red, its segments erect, 



