•OF ARTS AND SCIENCES: MAY 30, 1865. 555 



The genus belongs to the Flotowiece, according to Weddell's neat 

 arrangement : and agrees with Chuquiraga and Doniophyton in hav- 

 ing the long filaments free from the corolla down almost to its base. 

 But the merely scabrous copious pappus, and naked and glabrous re- 

 ceptacle, as well as the corolla glabrous within, and the achenia, wholly 

 separate it from these andine genera. On the other hand, it quite as 

 much resembles the Brazilian and Cuban Stiftia and Anastraphia ; 

 but in the latter of these genera the filaments are adnate almost, and 

 in the former quite, to the sinuses of the corolla ; while the anthers in 

 both of them are long-tailed, and the lobes of the coi-olla more or 

 less revolute.* 



Two well-marked new Ferns, which the explorations of the Cali- 

 fornia State Geological Survey have brought to light, are characterized 

 by Professor Eaton as follows : — 



Pell^a Breweri, D. C. Eaton (sp. nov.) : caudice brevi assur- 

 gente ; stipitibus bi - tripollicaribus confertis fulvo-nitentibus teretibus 

 fragillimis basi paleis angustissimis fulvis obtectis ; frondibus tri-qua- 

 dripollicaribus oblongis pinnatis, pinnis brevi-petiolatis membranaceis 

 pellucidis plerumque bipartitis, segmento superiori majore, segmentis 

 pinnisque superioribus ovatis vel triangulari-ovatis basi cuneatis, venis 

 liberis pluries furcatis ; sporangiis ad apices venularum pancis indusio 

 continuo tenui revoluto velatis. — Rupestris inter montes Sierra Ne- 

 vada Californiae, altitudine 7,000 - 9,000 ped. super mare. Prof. W. 

 H. Brewer, n. 1919, 2102, 2038. 



AspiDiuM (PoLTSTiCHUJi) Californicum, D. G. Eaton (sp. nov.) : 

 elatum, insigne ; frondibus oblongo-lanceolatis pinnatis, pinnis confer- 

 tis lanceolatis falcatis acutissimis basi superiori auriculatis, imis vix 

 minoribus, inferioribus pinnatifidis, mediis pinnatilobatis, supremis gra- 

 datim minoribus spinuloso-serratis, .lobis ovato-oblongis spinuloso-apicu- 

 latis subtus paleis angustis conspersis supra glabris, venis pinnatis 

 liberis, pinnis fere omnibus soriferis ; soris confertis ; indusiis teneribus 

 orbiculatis ciliatis pedicello brevi gracili suffultis ; rhachi stipiteque 

 paleis difformibus instructis aliis magnis lato-lanceolatis aliis minoribus 



* In St'Jlia chrysantha I d() not find the tube of the corolla 10 nerved, nor the 

 branches of the style acute ; the latter are rather spatulate and very obtuse. 



