48 Contributions from the Gray Herbarium 
RADO: dry mesa among junipers, Nucla, June 4, 1914, Edwin Pay- 
son, no. 395. Arizona: Grand Canyon, June 28, 1898, MacDougal, 
no. 184. 
C. oxyeona (Gray) Greene is either little known or very rare. 
The type came from “ hills bordering the Mohave Desert,” and on 
April 28, 1905, Mr. Heller secured it at McKittrick, Kern County. 
Unfortunately he distributed it (under his number 7789) as C. 
cycloptera Greene. One plant of this number in the Gray Her- 
barium is C. intermedia (Gray) Greene, but the rest of the collection 
is very typical C. oxygona. The discovery of a new station for 
this unusual species is of interest. 
C. ampicua (Gray) Greene. C. simulans Greene, Pitt. v. 54 
(1902) is merely a tall specimen of this species. The nutlets are 
broadly ovate, dull, and are roughened with papillae of two sizes, — 
the really diagnostic characters of C. ambigua. C. multicaulis A. 
Nels. Bot. Gaz. xxx. 183 (1900) is closely allied to C. ambigua but 
is clearly distinct by its more compact habit and glossy, sparsely 
muriculate fruit. Its range in the Coulter & Nelson Rocky Mt. 
Bot. is given as “ Wyoming and probably southward into Colo- 
rado.” In reality specimens indicate that it is not infrequent from 
Montana to Nevada and north to Washington. C. trifurca Eastw. 
Bull. Torr. Club. xxxii. 203 (1905) is nearer C. multicaulis than 
C. ambigua, and is probably confined to extreme northern California 
and southwestern Oregon, an area noted for species peculiar to it. 
C. scoparia A. Nels. Bot. Gaz. liv. 144 (1912) is another member 
of this group and is to be distinguished from C. multicaulis by its 
narrowly conical nutlets with narrow open groove and scarcely 
forked basal areola. A specimen which has long proven trouble- 
some to students is to be referred to this species. It is W. N.- 
Suksdorf’s no. 405, collected June 8, 1884, on plains, at Morgan’s 
Ferry on the Yakima River, southeastern Washington. The ori- 
ginal label bears the name Krynitzkia angustifolia ?, in Dr. Gray’s 
hand. This has a line drawn through it and on a slip bearing: the 
abbreviation “ Syn. FI.,” Dr. Gray wrote, ‘“‘ K. Fendleri.”” It was 
on the basis of this specimen that in the Syn. FI. ii. pt. 1, Suppl. 424 
(1886) he extended the range “ northwestward to the borders of 
Washington Territory.” Then Piper, in Contrib. U. S. Nat. Herb. 
xi. 485 (1906), wrote: “ Suksdorf’s specimen, on the basis of which 
C. Fendleri is included in his list [of the plants of Washington], 
