CLASSIFICATION OF AMERICAlSr WHEAT VARIETIES. 181 
ventral diameter and are somewhat softer. In many instances the 
varieties of poulard and durum are so near alike that it is difficult to 
distinguish them. 
Only a few varieties of poulard wheat are cultivated in the United 
States, and the grain of these is of no commercial value except as 
feed for stock. The varieties grown can be distinguished by the ac- 
compan3dng key. 
KEY TO THE VARIETIES OF POULARD WHEAT. 
la. Spike Simple. 
2a. Spike Awned. 
3a. GLUitES Pubescent. 
4a. Glumes White. 
5a. Kernels Red ( Triticum turgidum jodurum AL). 
Kernels Short to Midlong. Page. 
Spring Habit Clackamas 181 
lb. Spike Branched. 
2a. Spike Avtned. 
3a. Glumes Glabrous. 
4a. Glumes White. 
5a. Kernels White 
Kernels Short to Midlong. 
Spring Habit Alaska 182 
3b. Glumes Pubescent. 
4a. Glu^ies Brown. "^ 
5a. Kernels White ( T. t. miTabile Kcke.). 
Kj:rnels Midlong to Long. 
Winter Habit Titanic 182 
5b. Kernels Red ( T. i. linnaeanum AL). 
Kernels Short to Midlong. 
Winter Habit Winter Alaska 1S3 
DESCRIPTIONS, HISTORY, DISTRIBUTION, AND SYNONOMY OF POULARD WHEAT 
VARIETIES. 
CLACKAMAS (CLACKAMAS WONDER), 
Description. — Plant spring liabit, late, tall ; leaves pubescent ; stem wlilte, 
weak to midstrong; spike simple, awned, oblong, middense, nodding; glumes 
glabrous with pubescent edges, white with bluish black edges, midlong, mid- 
wide; shoulders narrow, oblique to elevated; beaks wide, 1 to 2 mm. long; 
awns black, 5 to 18 cm. long ; kernels red, midlong to long, hard, usually be- 
coming starchy, broadly ovate, truncate at tip ; crease midwide, shallow ; cheeks 
angular ; brush midsized, short. 
Clackamas differs from other varieties of poulard wheat grown in the United 
States in having simple spikes. It differs from the old Rivet wheat of England 
in having a spring habit and partly glabrous glumes. As grown commercially, 
Clackamas is somewhat mixed with common wheat and also contains several 
other types of simple-spiked poulard wheat. 
Histonj. — The origin of this variety is not known. Seed of the strain above 
described was obtained in 1918 from New Mexico, where it has been grown 
to a considerable extent for several years, apparently without a name. A wheat 
which apparently is identical with the above has been grown in Clackamas 
County, Oreg., for several years under the name Clackamas Wonder. 
Distrilnition. — Grown in New Mexico and Oregon. 
