108 CHEILANTHES. 



tiform or linear often quite continuous slightly waved and 

 jagged or crenated. Link, Fil. Sp. in Hort. Jierol. p. 63. 

 Kze. in Schkuhf, Fil. Snppl. p. 78, i. 36. Otholoma, Link. 

 Cassebeera, ./. Sm. Allo.sorus, Pr. Allosorus pulchellus, 

 Mart, et Galeot. Fil. Mex. p. 47, t. 10,/. 2. 



Hub. Mexico, Province of Oaxaca, elevation above the sea 7,000 feet, 

 GaleoUi, n. 6560. Ceiro de Pinel (n. 1450), Siena Madre, N.W. Mexico, 

 Seetuann, ?j. 1932. Siena San Pedro Nolasco, Talca &c., Jurgensen, n. 

 670. — Tlie frequently continuous sori would lead to the opinion that this 

 should be ranged in Pteris or Allosorus : other specimens, and I cannot 

 say dependinfj on age, have quite the small rounded punctifonn involucres 

 of C/ieilant/ies, yet gradually upon the same si)ecimen more or less com- 

 bined and continuous all round a lobe or pinnule. As Cheilanthes, it is 

 extremely distinct from any other : the pinnules and lobes are harsh and 

 rigid and almost cuspidate, so as to resemble those of some Polystichtim. 

 Our specimens from Sierra Madre are very much larger and more divided 

 than those of Kunze's figure : the fronds and the stipes too are very brit- 

 tle. Some of my specimens correspond so exactly with Martens and Ga- 

 leotti's figure and description of their Allosorus pulchellus, that there cannot 

 be a question of the identity of the two. 



57. Ch. profnsa, Kze.; roots slightly creeping scaly, stipi- 

 tes 2 — 4 inches long and as well as the rachises hispid with 

 spreading subulate paleaceous scales, frond oblong-lanceolate 

 acute subcoriaceous pinnate, pinnae often opposite glabrous, 

 uppermost lanceolate approximate subcoadunate entire, lower 

 ones ovate or deltoid acuminate distant very shortly peliolate 

 deeply pinnatifid at their base sometimes pinnate, pinnules 

 and laciniae lanceolate rarely slightly lobed or pinnatifid often 

 curved a little upwards, costae hispid with appressed narrow 

 subulate scales, involucres of the same texture as the frond 

 continuous, — from the same root another form of frond ap- 

 pears smaller with fewer and more approximate pinnae which 

 are ovate blunt and only sinuato-lobate the edges membrana- 

 ceous subcrenulate. Kunze, in Linnaa, xviii. p. 535, (1850), 

 p. 244, et in Schkuhr's Fil. Suppl. p. 33, /. 17. Notochlaena, 

 Pr. 



Hab. Namaqua Land, Drege. — My specimens of this are from Zeyher, 

 n. 4627. These exhibit only the usual form as figured and described by 

 Kunze. But our cultivated plants produce from the same root the form 

 which Kunze makes " Var. ? B., minor; pinnis approximatis abbreviatis 

 inciso-pinnatifidis costis rachibusque calvescenlibus : " and which if seen 

 separately would naturally be taken for a distinct species. It is well figured 

 by Kunze in the plate above quoted, fig. c. In the coriaceous texture of 

 the frond and the continuous involucres it has an affinity with certain Cape 

 species of Pteris or Allosorus. 



