68 Muhlenbergia, Volume rE 
2 wart ‘ ae 
A NEW MERTENSIA FROM COLORADO 
By T. D. A. COCKERELL | 
Mertensia secundorum 
About 23cm. high, hoary-strigose all over, imiladea both 
sides of the dark green leaves, calyx, etc.: leaves sessile, the 
lower ones narrowly linear, the upper lanceolate or lanceolate- 
linear, about 68mm. long and 11 or 12mm. wide, the widest 
point not far from the clasping base, the apex tapering; the 
lower, narrow, leaves have the midrib very prominent, and fee- 
ble lateral nervures; the broader upper ones have the lateral 
nervures very distinct; no cross nervures: flowers numerous, the 
corolla about 12 mm. long, the bright blue limb nearly 7mm., 
the stout tube nearly 6mm.: calyx cleft much beyond the mid- 
dle, the lobes lanceolate, acute, conspicuously shorter than the 
corolla tube (essentially as in various members of the /anceolatae, 
notwithstanding the key in Rydberg’s Flora of Colorado): style 
exsetted about 2mm.: filaments a little broader than the anth- | 
ers, and much longer than them, inserted in the throat of the : 
corolla, the intervals with bunches of hairs. | 
A very hairy member of the /anceolatae, recalling WZ. fend- | 
lertand M. bakert. M. fendlert, which I have collected in New . 
Mexico, but do not now possess, differs in the calyx, and as I 
recall is a different looking plant. It has never been found in 
Colorado. JZ. bakert is high alpine (11000-13000 feet), and the 
quite differently formed leaves have no lateral nervures. J 
Jusyformis Greene is much smaller, with the stem leaves taper- 
ing at base. 
On May 16, 1907, Charles Euler, Frank Lindsley and other 
members of the second year class of the State Preparatory School 
brought in a quantity of A/ertensza for use in class, all collected 
in the immediate vicinity of the town. To my astonishment, I 
found the present species represented by several specimens, 
which appear to have been collected by Charles Euler in a dry 
spot near the mouth of Bouldercanyon. ‘The plant is dedicated 
to the second year class of the Preparatory School. 
University of Colorado, Boulder, Colorado. 
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