24 PLANTS BAKERIANyE. 



vex, uniformly bright brick-red verging toward salmon, 

 viscid, becoming somewhat dry and occasionally cracking 

 areolately with age, flesh pure white, slowly changing to 

 pinkish purple when cut; pores at first pure white stuffed 

 and plain, becoming ventricose and tawny, turning purplish 

 and then greenish blue when bruised, deeply sinuate; stem 

 stout, enlarged below, tapering abruptly upward for the 

 upper one-fourth, 3-4cm thick below, lj-2cm above, 

 8-12cm high, solid, pure white within, externally white, 

 but beset with upward pointing, brown tipped scales, usually 

 smooth above. On the ground, common in moist aspen 

 thickets. No. 355, Chicken Creek, 9,000 feet, July 6. Also 

 seen on the upper La Plata at 10,000 feet. Some three 

 dozen specimens of this magnificent Boletus were taken, but 

 owing to constant showers, and lack of drying facilities, all 

 but one were lost. Two other species of the genus were 

 seen, but it was not possible to preserve them. 



POLYPORACE^;. 



By L. M. Underwood. 



LENZITES SEPIARIA, Fries, Epicr. 407. On logs of Picea 

 Engelmannii, Bob Creek at 10,000 feet, 27 June, n. 797. 



MERULIUS sp. On logs of Picea Engelmannii in Slide 

 Rock Canon, 30 June, n. 10,52. Probably new, but too old 

 for satisfactory determination. 



POLYPORUS ADUSTUS (Willd.), Fr. Syst. i. 363. Logs of 

 Populus tremuloides, Bob Creek, 10,000 feet, 28 June, n. 778. 



POLYPORUS PINICOLA, Fr. Eleuch. 105. Logs of Picea 

 Engelmannii, La Plata Mts., July, n. 794 and 796. 



POLYPORUS SALICINUS (Pers.), Fr. Syst. i. 376. On stand- 



