262 RyDBERG: STUDIES ON THE 
grows along streams at an altitude of 2000-2200 m. The follow- 
ing specimens from Montana belong here: 
Montana: Spanish Basin, 1897, Rydberg & Bessey, 4876 
(type in herb. N. Y. Bot. Garden); near Indian Creek, 4872 ; 
Bridger Mountains, 4875 ; Mystic Lake, 1895, C. LZ. Shear, 3076 ; 
Deer Lodge County, 1901, Mrs. Emma W. Scheuber, 42; Basin, 
1902, Kelsey. 
Heliotropium spathulatum sp. nov. 
Heliotropium curassavicum Hook. Fl. Bor, Am. 2: 81. 1840. 
Not L. 
? Heliotropium curassavicum obovatum DC. Prod.g: 538. 1845. 
Not 7. obovatum D. Don. 
A glabrous, more or less glaucous, fleshy perennial with as- 
cending more or less branched stems, 3-5 dm. high: leaves spat- 
ulate, fleshy, indistinctly nerved, 2-5 cm. long, obtuse or rounded 
at the apex, tapering at the base and the lowermost petioled : inflor- 
escence branched into 2-5 racemes ; these often starting from one 
point at the end of the common peduncle: calyx about 3 mm. 
long, cleft to the middle ; its lobes ovate-lanceolate, acute: corolla 
white or slightly tinged with blue, 6-8 mm. long; the limb of 
about the same width: nutlets 2.5-3 mm. long, scarcely rugose. 
This is the common plant of the Rocky Mountain region that 
has been known as 7. curassavicum L., but has much broader 
leaves, more than twice as large flowers and larger fruit than the 
cosmopolitan plant found on our eastern seaboard and in the south- 
ern states. Itis probably the same as the plant collected by 
Douglas in the Blue Mountains of Oregon and briefly described 
in the places cited above. Hooker states that in the Blue Moun- 
tains were the only places where Douglas found 7. curassavicum. 
In the Columbia herbarium there is a specimen, labelled: ‘“ Cali- 
fornia, Douglas.” If this specimen is one of those collected in 
the Blue Mountains and described by Hooker and DeCandolle, 
the synonyms cited above should be excluded ; for the specimens 
evidently belong to the short-leavea and smaller-flowered form of 
1, curassavicum common on the Pacific coast and described by 
Willdenow under the name H. chenopodioides, 
1. spathulatum is fairly common in meadows throughout the 
Rocky Mountain region and the great plains from Assiniboia and 
Washington to Iowa, New Mexico, Chihuahua and California. 
The type was collected at Great Falls, Montana, 1890, FR. 5. 
Williams, 542 (in herb. N. Y. Bot. Garden). 
New YorK BOTANICAL GARDEN, 
