140 25. CHEILANTHES, PHYSAPTERIS. 



. 42. C. Lindheimeri, Hk. ; st. scattered, 3-6 in. 1., wiry, dark chesnut-brown, 

 polished, thinly clothed with linear-lanceolate scales, scarcely tomentose ; fr. 

 3-6 in. L, 1^-2 in. br., ovate-lanceolate, tripinnatifid ; pinnce numerous, con- 

 tiguous, the lowest about 1 in. 1., | in. br., lanceolate; pinnl. numerous, linear- 

 oblong ; ult. segm. numerous, minute, roundish ; yachis densely scaly above ; 

 upper surface woolly, the lower densely matted with wool and ovate-acuminate 

 bright reddish-brown scales,, margin of the segments much incurved ; sori 

 copious, marginal. Hk. Sp. 2. ^.101. t. 107. A. 



Hab. Texas and New Mexico. This quite agrees with C. myriophylla in habit and 

 texture, differing only in its wide - creeping rhizome and stipes without woolly 

 tomentum. 



43. C. myriophylla, Desv. ; at. densely tufted, 3-6 in. 1., strong, wiry, erect, 

 densely clothed with pale woolly tomentum ;//\4-6 in. 1., 1^-2 in. br., ovate-lan- 

 eeolate, tri- or quadripinnatifid ; lower pinnce about 1 in. ]., ^ in- br., lanceolate- 

 deltoid, cut down te> the rachis into numerous linear-oblong pinnl. on both sides, 

 which are again slightly branched at the base ; ult. segm. very small, roundish, 

 beadlike ; 'texture subcoriaceous ; rachis clothed with tomentum like the stipe and 

 also with distinct lanceolate-acuminate entire scales ; upper surface green and 

 pilose, lower densely matted and scaly, the margin of the segments much 

 incurved ; sori copio'us, marginal. HJc. Sp. 2. p. 100. t. 105. A. /3, C. elegans, 

 Desv. ; ult* segm. obovate-pyriform, usually tapering into a distinct stalk. Hk. 

 Sp. t. 105. B. C. paleacea, Mart. & Gal. M. marsupianthes, Fee. 



Hab. Tropical America, especially in the west side, from Mexico southward to Peru 

 and Chili, and discovered lately by Capt. Beddome in the Neilgherries. Of M. cheilogly- 

 yhus and rufa of Fde, both Mexican plants gathered by Schaffner, I have not seen 

 specimens. 



44. C. scariosa, Kaulf. ; st. densely tufted, not more than 1-2 in. 1., densely 

 coated with large lanceolate whitish-brown scales ; fr. 6-8 in. L, 1 in. br., 

 narrowly ovate-lanceolate, bipinnate ; pinnae numerous, contiguous, linear- 

 oblong, ^r-f in. 1., cut down to the rachis into numerous linear-oblong pinnl.; 

 rachis and both surfaces densely coated with lanceolate-acuminate scales, which 

 are about 2 lin. 1., -| lin. br., bright-brown in the centre, silvery-white towards 

 the ciliated and villous margin : edge of the segments much incurved. Hk. Sp. 

 2. p. 99. t. 104. A. 



Hab. Andes of Peru, and said to have been also gathered in Mexico. The only species 

 of the group with a dense coating of large scales. 



45. C. Eatoni, Baker ; st. tufted, 3-6 in. 1., wiry, erect, densely clothed with 

 pale-brown linear-subulate scales ; fr. 3-8 in. 1., 1-^-2 in.br., ovate-lanceolate, 

 tripinnatifid ; lower pinn. distant, alternate or opposite, deltoid ; pinnl. linear- 

 oblong, pinnatifid ; rachis rigid, covered with scales like the stipe, which also 

 cover thickly the midrib of the pinnse beneath ; texture coriaceous ; upper surface 

 densely clothed with white woolly tomentum, lower also densely matted, the 

 margin of the segments incurved. C. tomentosa, Ilk. Sp. 2. p. 96. (in part}, t. 

 109. A. non Link. 



Hab. Gathered in an expedition from Western Texas to El Paso, New Mexico, October 

 3849, C. Wright, No. 816. This differs from C. tomentosa by being coated with distinct 

 scales instead of mere woolly hairs on the stipe, rachis, and midrib of the pinna? beneath, 

 and by being matted with tomentum on the upper surface. Gordon's Colorado plant is 

 perhaps the same, but is more slender and less distinctly scaly. "We are indebted to 

 Prof. Eaton far the elucidation of the United States species of the genus. 



46. C. tomentosa, Link ; st. tufted, 4-6 in. L, strong, erect, densely matted 

 with pale-brown woolly tomentum j fr. 6-12 in. 1., 2-3 in. br., ovate-lanceolate, 

 tripinnatifid ; lower pinn. distant, opposite, 1-H in. 1., ^-f in. br., deltoid ; 

 pinnl. linear-oblong, cut down to the' rachis into numerous small oblong bead- 



