9 



3e 



PITTONIA 



slight secondary lobes, these crenately (on the peduncles) or 

 incisely (on vigorous shoots) toothed : flowers few m the 

 corymb, but the corymb usually compound : petals larger 

 and more showy than in other species, often rose-tinted : 

 carpels mostly 2, coherent to above the middle, but little 

 longer than the calyx, divergent at apex but only slightly 

 inflated, minutely tomentose, 1-seeded : seed obovoid. 



Eocky Mountains of Colorado, throughout the state, from 

 the foothills tip to the altitude of 8,000 and even 9,000 feet, 

 always in dry soil on rocky slopes in open or somewhat 

 shaded gi-ound. With its neat small foliage and compara- 

 tively large flowers, not dull, but always clear white when not 

 tinged with rose, this is the only really ornamental species. 

 The above description is drawn from specimens obtained by 

 the writer during the past season. The species is said io 

 occur in Utah and Xevada. The two ovaries are so closely 

 unite:! as fully to warrant the specific name given by Dr. 

 Torrey, although that name is here resumed solely in view 

 of its priority. 



* * Carpels not inflated, included in the cah/x, erect and 



straight at apex, indehiscent. 



4. N. MALVACEA. Shrub 3 to 5 feet high, stout, the shoots 

 erect : leaves digitately 5-veined, with or without 3 broad 

 and shallow lobes above the middle, the general outline 

 orbicular or oval, with many slight rounded and crenately 

 toothed secondary lobes: corymbs mostly simple, short- 

 stalked : calyx tomentose, very large, broadly carapanulate, 

 its lobes in maturity connivent over the fruit : carpels 2 

 (sometimes 3), connate above the middle, compressed, 

 indehiscent, 1- or 2-seeded : seed large, oblong-obovate. 



Diy rocky banks above the northern shore of Lake Fend 

 d' Oreille in northern Idaho, in leaf and fruit only, 9 Aug., 

 1883. A most distinct and reinarkable species, with more 

 external resemblance to N. opullfolia than to any of the 

 western species ; but the characters of the calyx and fruit, 



