246 Costantin et Bois, Genus Pachypodium speciebus novis auctum. 
4. Yucca Endlichiana Trelease, l. c., p. 229, pl. 15—17. 
Acaulescent, Leaves few, erect, thick and rigid, 1,5 X scarcely 
50 cm, half-round near the base, narrowly V-shaped above, smooth, 
bluish-green somewhat dappled beneath with longitudinal dark dashes 
near the very short thick gray point, the basal part of which is blackish- 
purple: margin brown, rather finely or sparingly filiferous below, the 
stiff recurving fibers becoming short and very thick near the apex. 
Panicle shorter than the leaves, freely branched, the branchlets about 
6-flowered. Flowers on filiform pedicels over 2,5 cm long, creamy to 
dull purplish brown, very small for the genus: perianth segments ovate, 
acute, about 8 X 1,5 cm: filaments short, minutely papillate: ovary ob- 
long, surmounted by a slender style of about half its length. Fruit 
pendent, subglobose or broadly ellipsoidal, 2 X 2,5 to 3 cm, with thin 
flesh quickly drying: seeds 5 to 6 X 6 to 7 mm, rather thin, the albumen 
shallowly ruminated. 
Mexico: Coahuila, Marte, on the Mexican Central Railway, and 
elsewhere, about the Sierra de Parras, the Sierra del Rosario, and the 
Sierra de la Paila. Received from, and named for, Dr. R. Endlich, who 
states that it is called ,pitilla^, and is said to produce a better fiber 
than that of the common lechuguilla (Agave Lecheguilla). 
A very distinct and remarkable species differing from all other 
Sarcoyuccas in its very small, often dark flowers, thinwalled fruit, and 
thin seeds. In a synopsis of species (cf. Rept. Mo. Bot. Gard., XIII, 46) 
it would find place immediately before Y. baccata with the characters 
„Acaulescent: flowers very small for the genus: style elongated.“ 
LXX. Costantin et Bois, Genus Pachypodium speciehus 
novis auctum. 
(Ex: Ann. Sci. nat. Paris. Bot, 9. sér. VI [1906], pp. 307—330.) 
1. Pachypodium Geayi Costantin et Bois in Comptes rendus de l'Acad. 
des sc., 22 juillet 1906; 1. c., p. 315. 
Arbor caule carnoso, fusiformi, sursum attenuato, undique pulvinis 
3-spinosis instructo; foliis lineari-lanceolatis, brevissime petiolatis, superne 
glabriusculis, subtus dense tomentosis. Flores ignoti. 
Arbre à tronc élevé, atteignant 8 à 10 metres de hauteur, charnu, 
mesurant 40 à 60 centimétres de diamétre dans sa partie inférieure (la 
plus épaisse), s'amincissant vers le haut, couvert d'épines groupées par 3, 
acieulaires, de longueur à peu près égale, atteignant de 25 à 28 milli- 
mètres sur les échantillons en culture. 
Sommet du tronc présentant presque toujours de courtes rami- 
fications dichotomes, terminées chacune par un bouquet de feuilles. 
