25. CHEILANTHES, § ADIAUTOPSIS. 131 



into oUong blunt-toothed ultimate divisions ; texture thinly herhaceous ; rachis 

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

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

 divisions. — Hi:. Sp. 2. p. 67. 



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



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



11. H. (Aspid.) californica, Hk. ; st. densely tufted, about 6 in. 1., strong, 

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

 pinncB deltoid, ihe 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 ; rachises naked, glossy, dark-brown ; sori 

 roundish, 2 to 6 to a segm., placed at the base of the sinuses. — Hh. Sp. 2. p. 71. 

 t. 88. A. 



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

 of Eudieilanthes (C. temuifolia, &o.). 



Gen. 25. Cheilanthes, Swartz. (See page 475.) 



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. Ill, f. 25. A considerable genus, mth many species extending hej/ond the 

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

 natifid, subcoriaeeo/us in texture. Veins free in all the species. Adiantopsis differs 

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

 Pell sea and Pteris, ly its more or less interrupted involucres. It is very difficult to 

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

 non-indusiate genus. 



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

 veinlet. Sp. 1-13. 



1. C. (Adiant.) moniicola, 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, auricjed at the base on the 

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

 —Qard. in Hk. Ic. PI. t. 477. Hypolepis Gardneri, Hh. 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. 

 S-j in. 1., ^f in. br., oblong, entire, broadly rounded at both ends, sessile ; 

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

 roundish, distinct but contiguous. — Ht. 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 Platylomw, 



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

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

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

 stalked, oblong-rhoraboidal, cuneate at the base below, truncate or auricled 



