25. CHEILAKTHES, §§§§ ALEUEITOPTERIS. 141 



like s^m. ; texture subcoriaceous ; rachis densely woolly like the stipe ; upper 

 surface grey-green, pubescent, lower densely matted, the margin of the segm. 

 incurved ; invol. pale, membranaceous. — C. Bradburii, Hh. Sp. 2. p. 97. t. 109. B. 

 and C. tomentosa, Hh. (in part). 



Hab. North Carolina and Tenessee, sonthward to Mexico. — The American botanists ' 

 have the authority of Prof. Kunze for referring the common Physapteris of the Southern 

 States to C. tomentosa. Tliere is a specimen, said to he from Jamaica, from Mr. A. B. 

 Lambert, in the Hookerian Herbarium. The Afghanistan plant, mentioned in " Species 

 Filicum " is O. Szovitzii. 



47. C. lendigera, Swartz ; st. 3-12 in. 1., strong, erect, polished, chesnut- 

 brown, clothed with copious rusty-brown tomentum ; fr. 4-12 in. 1., 2-4 in. br., 

 lanceolate, tri- or quadripinnatifid ; pinnce numerous, the lowest opposite, 

 erecto-patent, 2-3 in. 1., ^-f in. br., lanceolate ; pinnl. numerous, linear-oblong, 



. cut down to the rachis into numerous distinct convex small segm. ^ lin. or less 

 each way ; rachis densely tomentose ; texture subcoriaceous ; upper surface 

 naked, lower viUose ; sori subconlinuous ; invol. membranaceous, whitish. — Hlk. 

 Sp. 2. p. 96. *. 104. B. — p, G. minor. Mart. & Gal. ; hairs of the rachis less 

 copious and more chaffy. — Hh. I. u. t. 106. A. 



Hab. Mexico (ascending to 9-11,000 ft.), southward to the Andes of New Granada and 

 Ecuador- — O. frigida of Linden and Moore belongs here. 



48. C. spedosissima, A. Br. ; st. 3-6 in. 1., stout, erect, densely clothed with 

 large (l-lj in. 1., ^\ in. br.) linear-lanceolate ferruginous scales ; fr. 12-24 in. 

 1., 4-6 in. br., ovate-lanceolate, tripinnate ; pinnce numerous, contiguous, 2-3 in. 1., 

 f in. br., spreading, lanceolate ; pinnl. numerous, close, linear-oblong, cut down 

 to the rachis into numerous small beaded segm. ; texture subcoriaceous ; rachis 

 densely paleaceous below like the stipe, the upper part of the rachis of the pinnje 

 densely clothed with long rusty woolly hairs ; upper surface nearly naked, 

 under side tomentose ; sori not quite marginal, the edge of the segments much 

 incurved, membranaceous and toothed at the border so as to form a subconfluent 

 involucre. — Hk. Sp. Fil. 2. p. 103. Plecosorus mexicanus. Fee. 



Hab. Mexico (ascending to 12,000 ft.) and Guatemala.— The genus Plecosorus of F6e 

 is characterized by distinctly intramarginal sori. 



§§§§ Aleuritopteris, Fee. Involucres more or less confluent, fronds coated 

 beneath, tuitk white or yellow powder. Sp. 49-53. 



49. C. rufa, Desv. ; st. tufted, 1-2 in. 1., densely clothed with rusty-brown 

 woolly tomentum, fr. 6-9 in. 1., 2-3 in. br., ovate-lanceolate, bipinnatifid ; 

 pinnce opposite, the lower ones with 1-2 in. between them, oblong ; pinnl. on 

 the lower side the largest, 5-5 in. 1., linear-oblong, sinuato-dentate ; texture 

 herbaceous ; rachis densely tomentose like the stipe ; upper surface tomentose, 

 under surface more or less coated with white powder ; sori copious, marginal, 

 roundish, small ; invol. brown, ciliated. — Hh. Sp. 2. p. 79. t. 99. A. 



Hab. North of Hindostan, ascending to 4,000 ft. — ^The only tomentose plant of the 

 group. 



60. C. aurantiaca, Moore; st. tufted, 1-2 in. 1., chesnut- brown, polished, 

 fibrillose below ; fr. 4-8 in. 1., 2-3 in. br., bipinnate ; pinnae opposite, the lower 

 ones spreading, lanceolate, 1-1^ in. L, J-J in. br., cut down nearly to the rachis 

 into numerous linear-oblong entire or slightly crenatedjoirare/.,- rachis and upper 

 surface naked, lower densely coated with bright orange meal ; texture herbaceous ; 

 sori marginal, copious. — ^Allosorus, Presl. Pteris, Cav. C. ochracea, Hh. Sp. 2. 

 p. 1 14. Ic. PI. t. 904. Pteris lutea, Cav. teste Fournier. 



Hab. Mexico. 



