14 PLANTS BAKERIAN^E. 



and in this, as well as in a few but very constant characters 

 it may well claim specific rank. 



P. COMMIXTUM. Near the last but dwarf, 2 or 3 inches 

 high, more herbaceous and with even ampler and more co- 

 pious leafiness, the bracted spikes very short and dense; 

 leaves and stem glabrous, the former from oval and even 

 rhombic-ovate to oblong, mostly obtuse but with an abrupt 

 sharp point, the midvein conspicuous, some secondary veins 

 more or less obvious as diverging from it : perianths green, 

 their segments with white or purplish margins, more widely 

 expanding in flower and more loosely investing the longer 

 and partly protruding achene, this more elongated than in 

 the last in proportion to its thickness, dark and shining. 



The only specimens known to me of this are of Mr. 

 Baker's collecting as long ago as 1896 in northern Colorado. 

 One sheet is from Grizzly Creek, 24 Aug., the other from 

 Cameron Pass, 10,000 feet alt., 13 Aug., both called by him 

 P. Douglassii latifolium. The most notable characteristic 

 is the narrow and partly exserted achene. This, with the 

 dwarf stature, broad venulose leaves, and he excessive 

 leafiness, seem to mark it as a good subspecies. 1 



*A study of the above Bakerian plants has lead to the detection of 

 another new species nearly allied, namely : 



P. HOWEI.UI. Sparingly branched from the base, but the few 

 branches quite erect and contiguous, almost equably leafy to the summit 

 and sparsely floriferous throughout, more scabrellous than P. montanum 

 on all the angles ; herbage of a paler and rather yellowish green : elliptic- 

 oblong leaves very acute, thinnish and not inclined to be revolute, their 

 thin margins serrulate-scabrous : ocrese more scarious and almost fim- 

 briate : perianths few, erect both before and after flowering, though not 

 sessile : achenes wholly included and closely invested, very black and 

 highly polished, the face rhombic-ovate, i. e., broadest, and rather 

 abruptly so, much below the middle. Known to me only from Mr. 

 Howells' specimens taken in the Siskiyou Mountains, northern Cali- 

 fornia, 8 July, 1887, and distributed for P. Douglasii latifolium. 



