25. CHEILANTHES, ADIANTOPSIS. 131 



into oblong blunt-toothed ultimate divisions; texture thinly herbaceous ; rachis 

 rig-id, zizgag, dark-brown, tomentose, and the under surface of the frond hairy ; 

 sori very smnll, placed in the sides of the lobes of the segments or ultimate 

 divisions. Hk. Sp. 2. p. 67. 



Hab. Cape Colony, Kaffraria. Natal, and Zambesi Land. A well-marked plant. 

 Aspidotis, Nuttall. Fronds small, densely tufted, Sp. 11. 



11. IT. (Aspid.) Californica, Hk. ; st. densely tufted, about 6 in. 1., strong-, 

 erect, brown, glossy ; fr. about 3 in. each way, deltoid, quadripinnatifid ; lower 

 pinnae deltoid, the pinnl. of the lower side much larger than the others, cut down 

 to the rachis into numerous segm., which are again very sharply cut nearly to 

 the centre ; texture subcoriaceous ; racliises naked, glossy, dark-brown ; sori 

 roundish, 2 to G to a segm., placed at the base of the sinuses. Hk. Sp. 2. p. 71. 

 t. 88. A. 



Hab. California. This has quite the habit of the more finely-divided coriaceous species 

 of Eucheilanthes (C. tenuifolia, &c.). 



GEN. 25. CHEILANTHES, Swarlz. 



Sori terminal or nearly so on the veins, at first small, subglobose, afterwards 

 more or less confluent. Invol. formed from the changed reflexed margin, 

 roundish and distinct, or more or less confluent., but not quite continuous. 

 TAB. III. f. 25. A considerable genus., with many species extending beyond the 

 tropics, the fronds mostly under a foot long, often under six inches, tri- or quadripin- 

 natifid, subcoriaeeous in texture. Veins free in all the species. Adiantopsis differs 

 from Hypolepis in habit and the position of the sori, and Eucheilanthes from 

 Pelicea and Pteris, by its more or less interrupted involucres. It is very difficult to 

 draw the line between Cheilanthes and Nothochlasna, which is the corresponding 

 non-indusiate genus. 



Adiantopsis, Fee. Involucres distinct, roundish, confined to the apex of a single 

 veinlet. Sp. 1-13. 



1. C. (Adiant.) monticola, Gardn. ; st. densely tufted, under 1 in. 1., naked, 

 wiry, polished, blackish ; fr. 3-4 in. 1., ^ in. br., linear-lanceolate, simply 

 pinnate ; pinnae J-f in. 1., J in. br., oblong, obtuse, auricled at the base on the 

 upper side ; texture herbaceous ; rachis naked ; sori small, numerous, roundish. 

 Gard. in Hk. Ic. PI. t. 477. Hypolepis Gardneri, Hk. Sp. 2. p. 74. t. 92. B. 



Hab. Brazil, province of Goyaz ; discovered by Mr. Gardner. The only simply pinnate- 

 species of the subgenus. 



2. C. (Adiant.) pteroides, Swz. ; st. 6-12 in. 1., strong, erect, polished, dark 

 chesnut-brown, naked ; fr. 12-18 in. 1., 6-9 in. br., deltoid, tripinnate, upper part 

 simply pinnate, lower with several opposite pairs of wiry erecto-patent branches 

 growing gradually larger downwards, the lowest often again branched ; segm. 

 ^-f in. 1., |-f in. br., oblong, entire, broadly rounded at both ends, sessile ~ 

 texture subcoriaceous ; rachis polished, naked, both surfaces naked ; sori small, 

 roundish, distinct but contiguous. Hk. Sp. 2. p. 80. t. 101. A. 



Hab. Cape Colony, on mountains from 1-3,000 ft., and found also in Java. Closely 

 resembles in habit some of the Platylomce. 



3. C. (Adiant.) regularis, Mett. ; st. 6-9 in. 1., densely clothed with ferru- 

 ginous hairs ; fr. 6-8 in. 1., lanceolate- oblong, bipinnate ; pinna? spreading from 

 the rachis at right angles, the lowest 2 in." 1., oblong-obtuse ; pinnl. 4-5 lin. 1., 

 stalked, oblong-rhomboidal, cuneate at the base below, truncate or auriclect 



