406: CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Flowers white or rose-colored, in nodding spikes. 
Herbage viscid-glandular..............-.-.-.---2-----2--------- 4. S. boothit. 
Herbage puberulent, not glandular..............2.2..2.....2-.--- 5. 8. alyssoides. 
1. Sphaerostigma contortum (Dougl.) Walp. Repert. 2: 78. 1843. 
Oenothera contorta Doug].; Hook. Fl. Bor. Am. 1: 214. 1833. 
Type Locauity: ‘Sandy barren soil on the mterior banks of the Columbia River.” 
Collected by Douglas. 
SPECIMENS EXAMINED: 1. Form with stalked pods: Wilson Creek, Sandberg & Leiberg 
263; without locality, Vasey in 1889; Pasco, Piper 2965a; North Yakima, Henderson, 
May 27, 1892. 
2. Form with pods sessile: Pasco, Piper 2965b; west Klickitat County, Suksdorf 555, 85; 
Bingen, Suksdorf 2311; Ilia, Lake & Hull. 
ZONAL DISTRIBUTION: Upper Sonoran. 
The two forms above listed are probably distinct, but it remains to be determined which 
is typical S. contortum, as the distinguishing character does not appear in the original 
description. The sessile-podded form was later described as S. strigulosa Fisch. & Mey. 
from California. The whole group is in need of critical study. 
2. Sphaerostigma andinum (Nutt.) Walp. Repert. 2: 79. 1843. 
Oenothera andina Nutt.; Torr. & Gr. Fl. 1: 512. 1840. 
Type Locaity: ‘Dry plains in the Rocky Mountains, near Black-Foot River.’”’ Col- 
lected by Nuttall. 
Rance: Washington and Montana to Nevada and Utah. 
SPECIMENS EXAMINED: Wenache, Whited 86; Ellensburg, Piper 2675; Elmer 429; 
North Yakima, Henderson, May, 1892; Klickitat County, Suksdorf 311; Flett 1230; Klicki- 
tat Valley, Howell 1503; Pasco, Piper 2994; Spangle, Piper, June, 1899; Walla Walla 
region, Brandegee 786; without locality, Vasey 235; Coulee City, Piper 3907, 3908; Ellens- 
burg, Cotton 865. 
ZONAL DISTRIBUTION: Upper Sonoran. 
3. Sphaerostigma hilgardi (Greene) Small, Bull. Torr. Club 23: 188. 1896. 
Oenothera hilgardi Greene, Bull. Torr. Club 10: 41. 1883. 
Tyre Locaity: “On moist alkaline soil of the Klickitat Swale,’’ Washington. Col- 
lected by Hilgard. 
RaNnGE: Eastern Washington. 
SPECIMENS EXAMINED: Wenache, Whited 1093; Ellensburg, Piper, May 20, 1897; 
North Yakima, Almer 1082; Crab and Wilson creeks, Sandberg & Leiberg 290; Sprague, 
Sandberg & Leiberg 145; between Coulee City and Waterville, Spillman, May 27, 1896; 
Ellensburg, Cotton 865. 
Zonat Distripution: Upper Sonoran. 
4. Sphaerostigma boothii (Dougl.) Walp. Rep. 2: 77. 1843. 
Oenothera boothii Dougl.; Hook. Fl. Bor. Am. 1: 213. 1833. 
@enothera pygmaea Dougl.; Hook. Fl. Bor. Am. 1: 213. 1833. 
Tyre cocauiry: ‘On low exposed gravelly hills, near the branches of Lewis and Clark’s 
River, lat. 46° north.” Collected by Douglas. 
RanGeE: Washington to California and Nevada. 
SPECIMENS EXAMINED: Rock Island, Sandberg & Leiberg 441; Snake River, Walla Walla 
region, Brandegee 785; Tweedy, June, 1883. 
ZONAL DISTRIBUTION: Upper Sonoran. 
5. Sphaerostigma alyssoides minutiflorum (S. Wats.) Small, Bull. Torr. Club 23: 
192. 1896. 
Oenothera alyssoides minutiflora S. Wats. Proc. Am. Acad. 8: 591. 1873. 
Types Locauity: “ Northern Nevada and about Salt Lake, Utah.” 
