226 



sph 



Cool, shaded cliffs, Arroyo Ancho, 



Mad 



Specimens small or medium-sized, but answering Hookers 

 description very well, and agreeing with Schaffner's specimen in 

 the Cambridge Herbarium. The species appears somewhat in- 

 termediate between our A. spinulosum and A. pattihim, Swartz, 

 and may be only one of the variable forms of the latter species. 

 Mn Pringle's specimens resemble some forms of A, spinulosum 

 very much in general appearance, but lack the spinulose teeth to 

 the lobes. The sori are remarkable for their great size and prom- 

 inent involucres. 



No. 831 . — Aspidium juglaiidifolium, Kunze. Cool, damp 

 cliffs, Mapula Mts., October, 1886. 



No. 833, — Asplenium Glenniei, Baker. Deep, damp glen, Map- 

 ula Mts., November, 1886. 



Specimens wonderfully proliferous, single fronds bearing 

 from twenty to thirty tiny plantlets growing from buds situated 

 in the sinus at the apex of the pinnse (often also from their basal 

 lobes) and frond. This character does not seem to have been 

 noticed before, but appears to be natural to the species. On 

 this point Mn Pringle wrote: '* I am inclined to regard the Meaf 

 propagation' o^ Asplejiium Glemiiei as natural to the species. 

 It is the old fronds which put forth young plants in this way as 

 they die. It was the rule among the plants gathered by me ; 

 though I damaged some of my specimens by pulling off the old 

 ragged fronds before I detected their importance." 



A re-examination of some of Mr. Lemmon's Arizona plants 

 of this species shows the same character in them, though in a 

 less marked degree, owing, probably, to the plants having been 

 collected before the development of the buds had fairly begun. 

 In view of this evidence it seems best not to recognize this char- 

 acter as a varietal one in this species, but to record it here as 

 characteristic of the species itself, it being no less than the cul- 

 mination of its season's growth, the annual fronds in this way 

 providing for a special renewal before perishing. 



No. 1444. — AspleniumptimihimySMfdLVtz, Ledges, Arroyo Ancho, 

 Sierra Madre, October, 1887. 



