CONTRIBUTIONS TO WESTERN BOTANY NO. 16 



and size of the reduced form found in the Wasatch mountains, Utah. 

 But its scaly under surface and single row of big son differ. The 

 scales are dull chestnut-colored and acuminate and lacerate and con- 

 spicuously depressed appressed below, and mostly have the appearance 

 of being an indusium for the fruit dots as well as detached scales. 

 Ramsey Canon, on rocks in crevices among the live oaks. No. 24674. 

 September 28, 1929. 

 Asplenium Trichomanes. No. 24675. Ramsey Canon, Huachuca moun- 

 tains. September 30, 1929. Rather common on rocks among the live 

 oaks. The form of this species, common, here is more like that of the 

 east than of California and western Mexico, which Moore called var. 

 incisum and which Maxon has raised to specific rank under the name 

 of yespertinum. I cannot see any good reason for making a species 



iVlLu i ..tropurpurea. No 

 Arizona. September ■ 



Cyslopteris fragilis. No. 24667. Ramsey Canon, Huachuca mountains, 

 Arizona. September 30. 1929. I think Christensen was right in 

 i educing Underwood's Filix, which was a resurrection of Adanson's 

 genus Filix, which never had any species attached till after Bernhardi 

 created Cystopteris. This species is rather common on slopes and 

 around springs, and reaches nearly 2 feet in hight. It is one of the 

 did not collect 6 it CrnS * l s0 saw * in * e a oquivon mountains, but 

 Woodsia Mexicana. No. 24678. Ramsey Canon, Huachua mountains, 

 Arizona. September 28, 1929. Common among loose rocks on slopes, 

 ■" nd wi" 1 '' ris, but growing in more open places. 



Ih's has th< i chara< eristic of all the other Woodsias that I 



know, that of being pruinosely puberulent throughout, and which is 

 about the only means of determining which genus it is without 

 recourse to the microscope. This species is quite variable and may 

 run into W. obtusa (W. Plummerae). The indusium is conspicuous 

 always, ending in long hairs. 

 Notholaena ferruginea. N< 

 Arizona, October 1, 19 



ical. This is a very pretty fern, growing in dense tufts becai 



the shortly branching rootstocks. The rootstocks and lower stalks have 

 dark-chestnut, hair-like scales in addition to the somewhat woolly hairs 

 which cover the whole plant, and which are silvery white at first. 

 The fronds often become 2 feet long, but rarely over 2 inches wide| 

 and taper to the tip, and are very unlike any other species. Also No. 

 24680. Ramsey Canon, Huachuca mountains, Arizona. September 

 29, 1929. 

 Notholaena sinuata. No. 24681. Baboquivori mountains, Arizona. Sep- 

 tember 20, 1929. In open places anion.,- ro- k< and in crevices. 

 Notholaena Hookeri. No. 24682. Milkr t ';,,.■■ K ■ ■• huca mountains 



