174 Plantae Andrewseae. 



trate : I had inclined to the view that Dr. Greene's Lithospermum 

 alUcans was merely a whiter and slenderer form of L. linenfo- 

 lium and I named some specimens in accordance with this view. 

 Mr. Andrews had these species growing in his gardens and 

 knew from their autumnal condition that they were different. 

 To satisfy me he sent me abundant material of each, and I am 

 now growing them in pots side by side. L. linerifolium goes 

 into the winter with the next year's leaves well formed and con 

 stituting fully developed rosettes on the summits of the short 

 branched crowns of the roots. L. albicans, on the other hand, 

 possesses no evergreen leaves and the crowns of the less 

 branched and deeper set roots are wholly naked. To see the 

 two begin their development from their autumnal condition was 

 completely convincing. One more example : The Colorado 

 Eustoma we have called E. Russellianum . Mr. Andrews, noting 

 that this species was well known as an annual, recalled that the 

 Colorado specimens had not thus impressed him when he col 

 lected them. To satisfy himself he visited again the Eustoma 

 patch in the mountains. After examining some hundreds of 

 plants he found that not one had failed to develop, as a rosette, 

 the next year's crown leaves. Further evidence that the plant 

 is perennial, were it needed, he finds in the -old steins that 

 occasionally persist on the crowns. 



Having been kindly permitted to examine some of Mr. An 

 drews' choice collections I wish to report the following results 

 of my study. Knowing, as I do, the character of his work I 

 account it a privilege to extend to him the recognition that 

 appears in this paper. 



All types are deposited in the Rocky Mountain Herbarium. 



Asplenium andrewsii sp. nov. 



Rootstock short, wholly enveloped in matted roots ; stipes naked, ebe- 

 neous below, becoming green above, from 2-10 cm. long, somewhat angled 

 orstriate; lamina thinly herbaceous, deltoid-ovate or narrower, 3-10 cm. 

 long, somewhat narrower at its widest part, bipinnatifid, diminishing 

 nearly uniformly from base to tip ; pinnae lanceolate, the lower nearly at 

 right angles to the rachis, the upper ascending, gradually diminishing and 

 passing into the pinnatifid tip, all rather closely approximate and subop- 

 posite or the lower more distant (1 cm. or more) and alternate; pinnules 

 3-12 mm. long, ovate, more or less cuneate at base, sharply incised but cut 

 not quite to the costa, sharply and somewhat incisely serrate ; the veins 



