100 CIIEILANTHES. 



p. 125." Stv. Syn. Fil. p. 16. A. lanuginosnm, " Willd. in 

 Act. Erford. 1802, p. 31, /. 3,/ 4." 



Hal). Mountains of Peru, Dnmhcy, Prcsl. Fissures of rocks between 

 San Rafael and Huarriaca (Huanaca?), Peruvian Andes, Pocppig. Lime- 

 stone rocks ascending the Cordillera from Tarma, Andes, Peru, Mat/uws, 

 n. tilO, MncLean. — I have not had tlie opportunity of seeing the figure 

 of this plant published by Willdenow, nor have I any specimens iVom 

 Mexico, where tlie plant is said by Willdenow to have been found, and 

 where it was detected by Karwinsky, according to Kunze. Our Peruvian 

 specimens are extremely distinct froni Ch. lendifjera, to which Presl says 

 it is " maxirae affinis," nor should we be at all disposed to say with 

 Kunze, " Ch. squamosa, Hook, et Grev. t. 151, diffevt fronde bipiunala." 

 Presl remarks that Willdenow's specimens are " quadripinnate." Ours 

 are bipinnate, as Swarlz and Kunze describe the species : but so dense 

 is the mass of silky wool on the upper side (springing indeed from the 

 rachis but covering and concealing the whole frond) and so dense the 

 mass of scales beneath, that it is only by carefully removing these cover- 

 ings that the true nature of the ramification or the pinnules themselves 

 can be seen. It is an extremely beautiful white and silvery species, pro- 

 bably rare : for ourselves, we have only received Andine Peruvian spe- 

 cimens from Messrs. MacLean and Mathews. When dry, the pinnae are 

 very apt to roll or to be reflexed back towards the upper side of the rachis. 

 — I dare not quote the Ch. scariosa of Dr. Klotzsch, ' Linurea,' xx. 338 as 

 a synonyrae to our plant. His is a plant from Caraccas, of Moritz, n. 33, 

 and he further quotes Hartweg's n. 1518 from Columbia, both of which are 

 clearly what we here consider Ch. elegaas, and he quotes Ch, lendigera of 

 Presl, not his Ch. scariosa, which latter, nevertheless, I think is clearly ours, 

 for he speaks of the frond as " squamis lauceolatis scariosis albis diaphanis 

 densissime obtecta.'' Willdenow, too, the original authority for our plant, 

 expressly says, " singularis filix fronde bipinuata ex toto squamis albis ni- 

 tidis oblecta ita ut de pinnulis nemo aliquid observet," which could not be 

 said of Moritz' n. 33, nor Hartweg's n. 1518: a species of Cheilanthes that 

 must have been familiar to Willdenow. Klotzsch, on the other hand, gives 

 the Herbarium of Ruiz and Pavon as containing his Ch. scariosa " in An- 

 dium montibus ad Huanuci et Tarini tractus," which seems to be exactly 

 the region of our plant. He further quotes a Peruvian plant of Dombey's 

 herbarium from Peru, and Mr. John Smith has a specimen of our Fern 

 from Doinbey in his collection. Dr. Klotzsch however oflers no disticntive 

 remarks on his species. 



44. Ch. myriophylla, Desv. ; roots tufted, caudex scarcely 

 any nodose clothed with black bristly appressed scales, sti- 

 pites tufted 3 inches to scarcely a span high clothed as well 

 as the rachises with copious ash-coloured hairs, the rachises 

 have in addition copious ovate or ovato-lanceolate pale brown 

 membranaceous ciliated ovate or lanceolate scales which co- 

 ver and conceal the under side of the pinnules, fronds 4 — 6 — 

 8 inches long oblong or lanceolate rigid subcoriaceous tri- 

 subquadripinnate, primary pinnae oblong subacuminate rather 

 closely placed, secondary pinnse linear-lanceolate, pinnules 



