1921) SCHNEIDER, NOTES ON AMERICAN WILLOWS, XII. 77 



ovaries and fruits is very ferrugineous. It may represent a new species. 

 In the mountains of Mexico there occur probably some more Willows, 

 and also of those hitherto found our knowledge is rather imperfect. I 

 already mentioned in Bot. Gaz. lxv. 39, the obscure S. cinerea Sesse & 

 Mogino, non Linnaeus. 



97b. S. paradoxa var. ajuscana Schneider. — S. Pringlei Rowlee, pro 



parte. — See Schneider in Bot. Gaz. lxv. 37. 



98. S. oxylepis Schneider. — S. latifolia Martens & Galeotti. — See Schnei- 

 der in Bot. Gaz. lxv. 34. 



99. S. Rowleei Schneider. — S. carta Rowlee, pro parte. — See Schneider 



in Bot. Gaz. lxv. 31. 



99b. S. Rowleei ? var. cana Schneider. — S. cana Rowlee, pro parte. — 



See Schneider in Bot. Gaz. lxv. 34. 



An uncertain Willow probably closely related to the last one or repre- 

 senting a form or hybrid is S. Pringlei Rowlee. See Schneider in Bot. 

 Gaz. lxv. 37. 



Sect. XXI. Phylicifoliae Dumortier. — See Schneider in this Jour. 



I. 67. 



100. S. pulchra Chamisso. — See Schneider in this Jour. i. 70. 

 100b. S. pulchra var. yukonensis Schneider in this Jour. i. 72. 



101. S. paraleuca Fernald. — See Schneider in this Jour. i. 75. 



102. S. planifolia Pursh. — See Schneider in this Jour. i. 75. — I also 

 want to add a few words on the obscure S. obovata Pursh, Fl. Am. Sept. 

 ii. 611 (1814), which I mentioned when I dealt with S. cordifolia in Bot. 

 Gaz. lxvi. 344 (1918). Pursh's species has been based on two different 

 forms, one from Labrador collected by Colmatser, and the second 

 from the "North West Coast. Nelson." It may be that the first speci- 

 men represents either S. cordifolia or S. planifolia, but it is impossible 



to ascertain the identity of the two forms mixed by the author without 

 seeing his types which, unfortunately, seem to be lost. 1 



102b. S. planifolia var. monica Schneider in this Jour. I. 78. 



103. S. pennata Ball. — See Schneider in this Jour. i. 81. 



104. S. pellita Andersson. — See Schneider in this Jour. i. 82. 

 104a. S. pellita f. psila Schneider in this Jour. i. 83. 



105. S. subcoerulea Piper. — See Schneider in this Jour. i. 84. 



106. S. bella Piper. — See Schneider in this Jour. i. 86. 



107. S. Drummondiana Barratt. — See Schneider in this Jour. I. 87. 



108. S. Jepsonii Schneider in this Jour. i. 89. 



Sect. XXII. Brewerianae Schneider in this Jour. i. 95. 



109. S. Breweri Bebb. — See Schneider in this Jour. i. 95. 



1 In discussing, 1. c, Andersson's S. chlorophylla 1 forgot to mention two of his forms 

 described in 1867, as S. chlorophylla denudata latifolia and angustifoha. The last is 

 nothing but var. denudata (typical S. planifolia), but of/, latifolia he says: "foliis 

 obovatis, utrinque pure "\iridibus." Not quoting a type or even a locality it remains 

 doubtful which form Andersson had in mind. 



S. Nelsomi Ball which seems to be a species most closely related to or a variety of 



S. planifolia has been discussed by me (in this Jour. i. 80). 



