190 PITTONIA. 
44. P. Arizontcus. Slender, commonly subacaulescent, 
4 to 10 inches high: leaves narrowly linear, tapering to the 
callous tip, almost or altogether glabrous except as to the 
loosely pilose margin: scapiform peduncles slender, loosely 
but rather. strongly hirsute; corolla cream-color, ł inch 
broad, saucer-shaped, the petals cuneate-obovate, nearly 
alike: stamens very unequal, but all alike as to the very 
narrow almost linear obtuse or truncate filaments: carpels 
7 to 14, slender, with 7 to9 small usually rounded joints, 
delicately lineolate, the lines sometimes anastomosing and 
the joints reticulate, also minutely tuberculate in some; 
stigmas almost filiform. 
Southern Arizona only; in the Santa Catalina mountains, 
and also apparently the same on the plains about Tucson, 
collected and distributed chiefly by C. G. Pringle and J. W. 
Toumey. 
45. P. remotus. Stoutish, bristly-hairy, about 6 inches 
high, subacaulescent, the peduncles much longer than the 
leafy branches: corolla ? inch broad, saucer-shaped, de- 
ciduous: stamens with very narrow spatulate-linear fila- 
ments not broader at summit than the anthers: carpels 
about 10, forming a middle-sized cylindric fruit, glabrous, 
very glaucous, strongly moniliform, the rounded joints 
about 9, obscurely lineolate-striate, and on the sides between 
the lines as obscurely tuberculate: stigmas short, barely a 
line long. 
Known to me only as accompanying the specimens re 
P. rigidulus on sheet n. 2754 of Herb. Calif. Acad., pre 
sented by Dr. ©. C. Parry, from his collection made 1 
southern Utah in 1874. 
46. P. LEPTANDER. Subacaulescent, 10 inches high, the 
scapiform peduncles of medium thickness, notably hirsute 
with spreading hairs, or some slightly deflexed: leaves 2 
