l8 9 T ] Notes on North American Willows. 107 



were between 5. glauca and 5. cordata, distributed over the 

 alpine regions of the Sierra Nevada and Cascade Range, and 

 of which S. Californica constituted the southernmost member. 

 Within a year or two past the collections of Piper and Smith, 

 on Mt. Rainier and of the Macouns — father and son — in Brit- 

 ish Columbia, have - shown that S. Barclayi Anders, known 

 heretofore as a species of the Alaskan coast, is the north- 

 ernmost representative of the series. A further consideration 

 of this group will be made the subject of a separate paper. 



1 



17. BkOWMl Bebb, var. PETR^EA (Anders.). More vari- 

 able in the Sierra Nevada than in the Rocky Mountains, and 

 including 5. tenera Anders. Andersson first named one of 

 Dr. Lyall's Cascade mountain willows S. plilcbopliylla, and 

 under this name the specimens were sent out from Kcw. 

 Afterwards he restricted the name phlebophylla to a species of 

 high arctic distribution and re-named Lyall's plant S. tenera. 

 Watson (Bot. King's Exped., p. 326,) finding one of his wil- 

 lows from the Uintas, 10,000 — 11,000 feet altitude, agreeing 

 perfectly with the Lyall specimen in the Gray herbarium adopted 

 the name which he found on the label, not suspecting — as, 

 indeed, why should he? — that the Lyall plant had been 

 made, later, the type of S. tenera and that the arctic species 

 was exclusively arctic. 



18. S. Monica Bebb. — Were I to receive to-day the poor, 

 stunted specimens upon which this doubtful species was 

 founded they would go into an already well filled cover 

 marked " undetermined " and there repose until something 

 more definite could be known about them. But 5. Monica is 

 no longer subject to the whim of its author. What is it ? 

 Possibly a form of S. chlorophylla And. This is known to 

 occur on Mt. Adams and the higher summits of the Cascades 

 and has also been collected by Prof. L. F. Ward in the Wah- 

 *atch mountains at 8,000-11,000 feet altitude. It is rather 



remarkable than otherwise that it has not been found on the 

 peaks of the Sierra Nevada in forms about which there could 

 be no uncertainty; but until this is done, the expediency of 

 adding the species to the state flora on the evidence afforded 

 by the poor, battered specimens named Monica, is v< y ques- 

 tionable. For the very narrow scale and the bracts at the base 

 W the staminate anient seem opposed to any such determina- 

 tion; nor can Monica be a starved, alpestrine form of Calif or- 

 ntca % lor this is known from almost the same localit .md its 



