(377) 
Distribution: This peculiar species has been found only at the 
type, locality. It is included here on account of its botanical 
interest. 
8. ADENOSTOMA. Cuamtise. 
Leaves" fascicled, channelled on one side. 
Leaves, linear-subulate, acute, 6-9 mm. long. 
1. A. fasciculatum. 
Leaves obtuse, 4-6 mm. long. 2. A. fasciculatum obtustfolium. 
Leaves not fascicled, narrowly linear, 6-10 mm. long. 
3. A. sparsifolium. 
1. ADENosToMA |FascicuLatum Hook. & Arn. Bot. Beech. 139, 
pl.’ 30.. 1832. 
Type locality: “In sandy plains in the Bay of Monterey.” 
Distribution: The chamise is one of the most characteristic 
shrubs of the California chaparral, being confined to the California 
Sub-area of the Upper Sonoran. In southern California it is much 
more abundant on foothills bordering the interior valleys, than on 
the coastal mountains. Over large tracts on the eastern end of the 
San Gabriel Mountains and on the lower southern slopes of the San 
Bernardino Mountains it often forms almost pure thickets. 
Specimens examined: Montecito, Franceschi, 1894; Red Reef 
Canyon, Topatopa Mountains, Abrams & McGregor 140; Mount 
Wilson, Grinnell, June 6, 1903; Little Santa Anita Canyon, 
Abrams 2649; Santa Monica Mountains, Abrams 1263; vicinity 
of San Bernardino, Parish 4838; Lone Pine Canyon, San Ga- 
briel Mountains, Abrams &F McGregor 665; near Potrero, Abrams 
3727: 
1a. ADENOSTOMA FASCICULATUM OBTUSIFOLIUM S. Wats. Bot. 
Cali Lo 184.) 9876. 
Adenostoma fasciculatum var. 8 Torr. & Gray, Fl. N. Am. 1: 
430. 1840. 
Adenostoma brevifolium Nutt.; Torr. & Gray, Fl. N. Am. 1: 430. 
1840, as a synonym. 
Type locality: “San Diego.” 
Distribution: Chiefly confined to the vicinity of San Diego, and 
extending from there southward into Lower California, but what 
seems to be identical occurs on the desert slopes of the Liebre 
Mountains. Upper and Lower Sonoran. 
