25. CHEILANTHES, PHYSAPTERIS. 139 



ovate-lanceolate, tripinnatifid ; lower pinnae rather remote, deltoid ; pinnl. i-| in. 

 1., cut down to the rachis into oblong- lobed segm. ; rachis polished like the 

 stipe, but more or less tomentose ; texture subcoriaceous, upper surface naked, 

 very convex in the mature fertile frond, under surface tomentose like the rachis^ 

 sori marginal. Hk. Sp. 2. p. 92. t. 102. A. 



Hab. Cape Colony ; discovered by M. Drege. It resembles C. lanuyinosa and Szovitzii 

 in size and general appearance, but is naked on the upper surface, and not at all matted 

 beneath. 



38. C. lanuginosa^ Nuttall ; st. densely tufted, erect, wiry, polished, dark 

 chesnut-brown, thinly clothed with spreading; woolly hairs; fr. 4-8 in. 1., 

 1-1^ in. br., ovate-lanceolate, bipimiatifid ; piunce in opposite pairs, the lower 

 ones deltoid ; pinnl. linear-oblong, contiguous, cut down to the rachis into 

 numerous small roundish or oblong segm.; rachis tomentose ; texture sub- 

 coriaceous ; upper surface grass-green, slightly tomentose ; lower surface densely 

 matted with a coat of pale-brown woolly tomentum, the margin of the segm'. 

 much incurved ; sori copious, marginal. C. lanosa, Moore. C. vestita, Hk. Sp. 

 2. p. 99. C. gracilis, RiehL 



Hab. Illinois and Wisconsin westward and southward to the Rocky Mountains, Cali- 

 fornia, and New Mexico. 



39. C. Szovitzii, Fisch. & Meyer ; st. densely tufted, erect, wiry, polished, 

 chesnut-brown, thinly coated with spreading Woolly hairs, mixed with linear 

 scales ; fr. 3-6 in. 1., 1-1| in. br., ovate-lanceolate, bipinnatitid ; pinnae in 

 opposite pairs, the lower ones deltoid ; pinnl. linear-oblong, contiguous, cut 

 down to the rachis below into small roundish beaded segm.; rachis scaly and 

 tomentose like the stipe ; texture subcoriaceous, upper surface green, slightly 

 tomentose, lower surface densely matted with a coat of pale-brown woolly hairs, 

 the margin of the segm. much incurved ; sori copious, marginal. Hk. Sp. 2. 

 p. 98. t. 98. C. fimbriata, Visiani. 



Hab. Asia Minor and Persia southward to N. Hindostan, ascending in the Himalayas 

 to 8,500 ft., Italy and Dalmatia. Very near C. lanuginosa, from which it only differs 

 by having distinct scales mixed with the tomentum upon the stipes and rachis. Notho~ 

 Icena persica, Bory, is apparently this species. 



40. C. gracillima, Eaton ; st. densely tufted, 2-6 in. 1., wiry, slender, dark 

 chesnut-brown, polished, only slightly scaly towards the base ; fr. 3-4 in. 1., 

 1 in. br., narrowly ovate-lanceolate, hi- or tripinnatifid ; lower pinnae opposite, 

 lanceolate-deltoid, about in. 1., in. br., cut down to the rachis into several 

 linear-oblong segm. on each side, the largest of which are |- in. 1., and the lowest 

 again slightly divided ; texture subcoriaceous ; rachis slightly fibrillose, upper 

 surface naked, the lower densely matted with pale-brown woo'lly tomentum, the 

 margin of the segm. much incurved ; sori copious, marginal. Eaton in Report 

 Mex. Bound. Survey, vol. 2. p. 234. C. Fe'ei, Moore. 



Hab. British Columbia, Oregon, California, Missouri, New Mexico, Guatemala. A 

 much less hairy and less divided plant than C. lanuginosa, with larger and less distinctly 

 beaded segments. 



41. C. Fendlerij Hk. ; st. scattered, 2-4 in. 1., wiry, chesnut-brown, polished, 

 slightly scaly ; fr. 3-4 in. 1., 1-1^ in br., ovate-lanceolate, tripinnatifid ; pinnae 

 lanceolate-deltoid, about f in. 1., in. br. ; pinnl. linear-oblong, cut down to 

 the rachis into numerous small oblong beaded segm.; rachis densely clothed 

 above with lanceolate acuminate entire scales, which are bright reddish-brown in 

 the centre, silvery-white towards the edge ; upper surface quite naked, under 

 surface scaly only, not matted ; texture subcoriaceous, margin much incurved ; 

 sori copious, marginal. Hk. Sp. 2. p. 103. t. 107. B. 



Hab. Rocky Mountains southward to California and New Mexico. 



