540 
AX): 
32. 
NORTH AMERICAN FLORA [ VoLUME 22 
1. Thompsonella minutiflora (Rose) Britton & Rose, Contr. U. $. Nat. Herb. 12: 
392. 1909: 
Echeveria minutiflora Rose; Britton & Rose, Bull. N. Y. Bot. Gard. 3:9. 1903. 
Described on page 22, as Echeveria minutiflora. 
ILLUSTRATION: Contr. U.S. Nat. Herb. 12: pl. 44. 
2. Thompsonella platyphylla Rose; Britton & Rose, Contr. U. S. Nat. Herb. 12: 
Se SIO) 
Basal leaves oblanceolate, 8-12 cm. long, narrowed at base into a long thick petiole, 
glaucous, with purple margins; flowering stem 20 cm. long, naked below; inflorescence a 
narrow panicle; sepals glaucous, thick; petals 6 mm, long, acute. 
TYPE LOCALITY: Iguala Cafion, Guerrero. 
DISTRIBUTION: Known only from the type locality. 
ILLUSTRATION: Contr. U.S. Nat. Herb. 12: pl. 45. 
7b. GRAPTOPETALUM Rose, Contr. U.S. Nat. Herb. 13: 296. 1911. 
Acaulescent or in time becoming shortly caulescent. Leaves forming a rather compact 
rosette, thickish, acute. Inflorescence a few-flowered, open cyme. Sepals 5, erect, 
green, nearly distinct. Corolla short-tubular, its lobes widely spreading horizontally or 
even reflexed, more or less banded with red. Stamens 10, in age recurved back of the 
petals. Carpels 5, erect even when mature, abruptly contracted into a short style; scales 
small. 
Type species, Graptopetalum pusillum Rose. 
1. Graptopetalum pusillum Rose, Contr. U. S. Nat. Herb. 13: 296. 1911. 
Rosettes 3—4 cm. in diameter; leaves spatulate, 2-4 cm. long, acute, glabrous, pale 
and slightly glaucous; stems about 10 cm. long, weak but erect or often falling over; stem- 
leaves alternate, linear; inflorescence somewhat cymose; pedicels 4-8 mm. long; sepals 
linear, acute, distinct nearly or quite to the base, 2-3 mm. long, slightly glaucous; corolla- 
tube 2-3 mm. long; lobes 6-7 mm. long, spreading or recurved, acute, yellowish to cream- 
colored, slightly blotched or banded with red; stamens slender, in age recurved upon the 
tube of the corolla; carpels erect at least when young. 
TYPE LOCALITY: In the State of Durango. 
DISTRIBUTION: Known only from the type locality. 
ILLUSTRATION: Contr. U. S. Nat. Herb. 13: f. 55; pl. 52. 
Clementsia rhodantha. 
Add: ILLUSTRATION: Clements, Rocky Mt. FI. pl. 30, f. 1. 
Insert: 
lla. Villadia diffusa Rose, Contr. U. S. Nat. Herb. 13: 302. 1911. 
Caulescent, much branched, somewhat woody at base, glabrous, purplish; leaves alter- 
nate, ovate, obtuse, 6 mm. long, glabrous; inflorescence an open spike, 2—12 cm. long; 
flowers subtended by a leaf-like bract; sepals 2-3 mm. long, ovate, obtuse, green; corolla 
about 6 mm. long, pinkish, the lobes acute, the tube about one-fourth the whole length; 
styles slender. 
TYPE LOCALITY: On Sierra Blanca, Chiapas. 
DISTRIBUTION: Known only from the type locality. 
11b. Villadia guatemalensis Rose, Contr. U.S. Nat. Herb. 12: 396. 1909. 
Very much branched, spreading; flowering branches erect or ascending; leaves closely 
set, standing nearly at right angles to the stem, terete, 1.5—2 cm. long, pointed; flowers 
sessile, terminal or axillary; sepals ovate, green, nearly distinct; corolla lemon-yellow; 
styles slender; carpels erect, even in age. 
TYPE LOCALITY: Chuactis, Guatemala. 
DISTRIBUTION: Known only from the type locality. 
