440 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
flowering stem 30 to 40 em. long, naked below; stem leaves narrow, terete or semi- 
terete, acute, 2 to 8 cm. long, erect or ascending; inflorescence at first strongly 
reflexed, usually 2-branched near the top, rarely 3-branched or simple, the branches 
8 to 10cm. long; pedicels very short, 2 to 3mm. long, only a little elongating in 
age; sepals unequal, deflexed in anthesis, but later spreading at right angles to the 
corolla, terete, acute; corolla buds ovate, acute; corolla pink; carpels distinct. 
Described from specimens sent by Dr. C. A. Purpus from the Rio de Tolantango, 
Hidalgo, in 1904, which flowered in Washington November, 1905, 
Type U. 8. National Herbarium no, 399673. 
ISXPLANATION OF PLATE LXXVIII.—From photograph of a greenhouse plant. Scale yy. 
Sedum allantoides Rose, sp. nov. Puate LXXIX. 
Perennial, perhaps in native state woody at base, somewhat branching below, 20 
to 30 em. high, rather weak, sometimes reclining below; leaves closely set, above 
somewhat scattered, standing almost at right angles to the stem, alternating, very 
turgid, terete in cross-section, clavate or somewhat bowed, 20 to 45 mm. long, 8 to 12 
mm, in diameter, rounded at apex, somewhat narrowed at base, very pale and 
glaucous; branches terminating in panicles, the lower subdivisions of these axillary, 
their flowers in small cymes; calyx deeply cleft; sepals nearly equal, ovate, acute, 
widely spreading, 6 mm. long; petals widely spreading, 7 to 8 mm. long, lanceolate, 
acute, greenish white, sometimes tinged with pink; stamens 10; anthers pink; scale 
large, white, notched; ovaries 5, erect, white; styles rather short. 
Collected by Dr. C. A. Purpus on hills near San Luis, Oaxaca, altitude 2,100 to 
2,400 meters, in 1907 (no. 417) and flowered in Washington in January, 1909. 
Type U.S. National Herbarium no. 574992. 
EXPLANATION OF PLATE LX XIX.—From a photograph of a greenhouse plant. Scale 75. 
I ig g§ I 1 
Sedum compressum Rose, sp. noy. Pirate LXXX, 
Perennial, more or less prostrate and rooting at the nodes, the flowering branches 
erect or ascending, glabrous; leaves closely set, spreading at right angles to the stem, 
glabrous, glaucous, flat, spatulate to oblanceolate, 2.5 to 3m. long, 10 to 12 mm. 
broad, with an ovate, acute tip; inflorescence cymose, consisting of 2 or 3 secund 
racemes; calyx cleft nearly or quite to the base, the lobes ovate to lanceolate, some- 
what unequal; corolla bright yellow; petals distinct, spreading, 7 to 8 mm. long, 
lanceolate, acute; stamens 10, the 5 alternating with the petals distinct, the other 5 
borne on the base of the subtending petals; scale small, flat; carpels at first erect 
with long attenuate tips. 
Collected by Dr. Ek. Palmer in a canyon near Victoria, Tamaulipas, April, 1907, 
and flowered in Washington, November 20, 1907, January, 1909. 
Type U.S. National Herbarium no. 573870, 
The species closely resembles Sedum palmeri but I have grown the two species 
together and find that they are easily distinguished. S. compressum tlowered some- 
what earlier; the leaves are smaller and have a very decided acute tip. 
EXPLANATION OF PLATE LX XX.—From a photograph of a greenhouse plant. Seale 47 
1s" 
Villadia levis Rose, sp. nov. , PLate LX XXI, 
Stems usually erect, 830 to 50 em. high, more or less branched, glabrous; leaves 
narrow, nearly terete, 2 to 3 cm. long, acute, spreading, often forming small rosettes 
along the lower part of the stem, and there somewhat angled; inflorescence an elon- 
gated leafy spike; sepals thick, ovate; corolla buds strongly angled, the angles granu- 
_late-roughened: corolla spreading, yellowish brown, the lobes ovate; scales large, 
orange-colored; style branches slender. 
Collected by J. N. Rose near Santa Catarina, Oaxaca, September 7, 1906, (no. 
11365) and flowered in Washington in 1908 and 1909. 
IKXPLANATION OF PLATE LX XXI.—From a photograph of a greenhouse plant. Scale ‘5. 
on 
