Lower Temperate Life Zone, found also at Skull Valley, Ari- 

 AUium reticulatum van Nuttallit (Watson Proc. Am. 



This comprises the forms with red and rather ri^id flow- 

 ers with short pedicels, rudimentary crests and flaccid leaves 

 ^horter than the slender stems which are about 6-18 inches 

 high ; bulbs small. This grows in the Middle Temperate Life 

 Zone from the Mimbres Mts., New Mexico, and in Arizona to 

 f^ritish America, on the Great Plateau only, at the south it 

 grows on low mountains. This is A. dictyotum Greene. 



Allium peninsulare Lemmon has been positively identified 

 by r.randegee as A. serratum, and so what I have hitherto 

 called that species becomes A. praecox Brandegee. 



Commelyna dianthifolia var. filiformis n. van 



This is more slender and less leafy ; tail beginning ab- 

 ruptly 9-12 lines from base of spathe and continuing 1-2 inches 

 at about the same width or sometimes enlarged toward the 

 lip into a pseudo-blade, but mostly it is not over 1 line wide 

 throughout; peduncles almost never exserted beyond the 

 spathe and usually are represented by a mere filiform rudi- 

 ment recurved from base of the spathe; roots rarely over 1 

 inch long. This is well represented in my herbarium by 

 many specimens, Arizona, New Mexico and Mexico. No. 263 

 of Townsend & Barber from near Garcia is one. It grows in 

 higher and more moist places, and is common. 



Tradescantia petiolaris n. sp. 



Annual, erect; all but the uppermost leaves short-petioled, 

 ovate, about 3 inches long, thin and flat ; spathes loose, 3 lines 

 long, hyaline; flowers terminal, 3, 6 lines long; pedicels stout, 

 pubescent, 1-2 inches long; sepals lanceolate, pubescent; 

 plants 1 foot high, glabrous except as noted. Guayanopa Can- 

 yon. Sierra Madre Mts., Chihuahua, Mexico, 6500 feet altitude, 

 Sept. 16th. 1903. 



Carex Tuckermanni is of Dewey and not Boott as is 

 usually given. It was published by Dewey in Siliimann's 

 Journal 149 48 (1845). 



Oryzopsis Kingii van latifolia n. var. 



Much like the type in habit, but leaves 2 mm. wide when 

 H-U, and 1 mm. wide when involute ; culms about yz as high 

 {12 inches high, excluding the equally long inflorescence) ; in- 



