PART 6, 1918] ADDITIONS AND CORRECTIONS 539 
25. 
29. 
26. 
26. 
S-angled, 1.5 cm. long; petals lanceolate, acute, somewhat gibbous at base, rose-pink, 
glaucous. 
TYPE LOCALITY: El Parque, Morelos. 
DISTRIBUTION: High mountains of central Mexico. 
ILLUSTRATION: Trans. Acad. St. Louis 20: pl. 8, 9. 
Insert: 
53a. Echeveria Holwayi Rose, Contr. U.S. Nat. Herb. 13: 295. 1911. 
Caulescent, the stem in cultivated specimens short and stout. Leaves forming a dense 
rosette at the top of the stem, pale-green, slightly glaucous, sometimes purplish, obovate, 
obtuse, mucronate, narrowed at base into a stout short petiole, the margin somewhat 
wavy, 10-12 cm. long; flowering stem 90-120 cm. long, often deep-red and glaucous, its 
leaves scattered; inflorescence a much-branched panicle; main branches axillary, 5—15- 
flowered; flowers arranged in a secund raceme; pedicels short, often only 1-2 mm. long; 
sepals erect or ascending, linear, acute, very unequal; corolla 12 mm. long, rose-colored 
when fully open, its lobes acute, with spreading tips. 
TYPE LOCALITY: Near Oaxaca, Mexico. 
DISTRIBUTION: Oaxaca. 
Insert: 
54a. Echeveria crenulata Rose, Contr. U. S. Nat. Herb. 13: 295. 1911. 
Caulescent, the stem in cultivated specimens short but in wild specimens much elon- 
gated and enlarged. Basal leaves in the wild plant broadly obovate, more than 30 cm. 
long, 15 cm. broad, rounded at apex, tapering at base into a very distinct petiole; stem- 
leaves pale-green, a little glaucous, the margin wavy and purplish red; leaves on flowering 
stems acute, ovate to spatulate, tapering into a stout, thick petiole; inflorescence a short 
panicle, the lateral branches short, few-flowered, the bract instead of subtending the 
branch usually carried up for some distance on the peduncle; sepals widely spreading, 
very unequal, acute; corolla 15 mm. long, strongly angled, yellowish-red, its lobes acute. 
TYPE LOCALITY: Near Cuernavaca, Morelos. 
DISTRIBUTION: Morelos. 
54b. Echeveria gigantea Rose & Purpus, Contr. U. S. Nat. Herb. 13: 46. 
1910. 
Stem short and stocky, 2-3 dm. long, crowned by arosette of leaves. Leaves oblance- 
olate, up to 2.5 dm. long, 1.5 dm. broad at widest point, tapering at base into a thick 
fleshy petiole, bordered by a bright-red margin; flowering stem erect, sometimes nearly 
2 meters long; inflorescence paniculate; pedicels short, 2-3 mm. long; sepals unequal, 
spreading; corolla 12-14 mm. long, pinkish. 
TYPE LocaLity: Near San Luis Tultitlanapa, Mexico. 
DISTRIBUTION: Known only from the type locality. 
ILLUSTRATION: Contr. U. S. Nat. Herb. 13: pl. 12-14. 
Echeveria Purpusi. 
Substitute for this name: Echeveria microcalyx Britton & Rose; Rose. Contr. U. 5S. 
Nat. Herb. 13: 295. 1911. Echeveria Purpusi Britton; Britton & Rose, N. Am. Flora 
22: 26. 1905. Not E. Purpusi K. Schumann, 1896. ‘This species was again collected in 
1907 and flowered in Washington in 1909 and 1910. 
Insert: 
7a. THOMPSONELLA Britton & Rose, Contr. U. S. Nat. Herb. 12:391. 1909. 
Acaulescent. Basal leaves few, spreading, oblong. Inflorescence a narrow panicle or 
loose simple spike. Sepals 5, erect, clavate. Corolla rotate, with a very short tube. 
Stamens 10, erect. Carpels 5, erect, the styles slender. 
Type species, Echeveria minutiflora Rose. 
Inflorescence spicate, open. 1. T. minutiflora. 
Inflorescence paniculate, dense. 2. T. platyphylla. 
