248 BARTRAM: BOTANIZING IN SOUTHERN ARIZONA 
VERBENA WricHTU Gray. This is one of the showiest of the early 
flowers in the foothills, where it blooms profusely in January. 
VERBENA XUTHA Lehm. Rare and local on dry slopes of the Tucson Mts. 
Lippra Wricutu Gray. Rocky slopes in the foothills. Leaves and 
ae persis 
eae VULGARE L. A very common weed of roadsides and waste 
places 
ea Ay Emorvyi (Torr.) Kuntze. Flowering oo the winter 
and very characterisric of arid rocky slopes in the foothilis 
HEDEOMA OBLONGIFOLIA (Gray) Heller. Ledges in the mouth of Sabino 
Canyon 
Scsuoua NANA (Torr.) Greene. In rock crevices along arroyos west 
of Tucson. The leaves and fruit of this and the preceding are persistent 
through the winter. 
SALVIA PINGUIFOLIA (Fernald) Woot. & ae eye rocky hillside at 
Robles Pass. Buds well developed but not in flow 
NICOTIANA TRIGONOPHYLLA Dunal. A common plant of dry ledges in 
the foothills. In flower throughout the winter. 
NICOTIANA GLAUCA Graham. An introduced shrub of waste places. 
Lycrum Cooperi Gray. Frequent on rocky slopes. 
Lycium Fremontit Gray. Ledges at the mouth of Sabino Canyon. 
In full aiber on January 6th 
LycIUM PARVIFLORUM Gray. A thorny straggling shrub of the gravel 
plains. 
Lycium Torrey Gray. Confined to the slopes near Picture Rocks. 
PHYSALIS IXOCARPA Brot. Infrequent in the Tucson Mountains. 
RHINUM ANTIRRHINIFLORUM (Willd.) Hitchc. On slopes of the 
Tucson Nacsa. Leaves and capsules persistent 
SCROPHULARIA PARVIFLORA Woot. & Standl. istics sparingly on 
January soit in the mouth of Pima Canyon, Santa Catalina Mountains. 
PENTSTEMON SUPERBUS A. Nels. Sandy washes in the foothills. Flow- 
ering Feeehy in January. 
MIMULUS —— Don. Shallow water in a brook east of the 
mouth of Pima Cany 
MECARDONIA PEDUNCULARIS 2 gnienrseiil — Abundant in a brook 
east of the mouth of fo —— to flower and mature 
fruit throughout the win 
STEMODIA DURANTIFOLIA (L.) Sw. In shallow water with the two 
gia 
Dia um TorreEyi (Gray) Woot. & Standl. Arid slopes near Agua 
Caliente. "The large cordate bracts, fading white and papery. give this plant 
a unique appearance in the field. 
