1 6 PATAGONIAN EXPEDITIONS I BOTANY. 



ceous, in the upper part pinnate, in the lower part bipinnatifid, with pin- 

 nae and segments obovate-cuneate, the former scarcely incised, the latter 

 incised-dentate ; sori oblong, at last confluent. D. 



Add Macl., p. 133: 



CHEILANTHES Sw. Lipfern. 



Vernation fasciculate, erect or decumbent, acauline, cespitose. Frond 

 bi-tripinnate, rarely once-pinnate, 10-20 cm. long; smooth-pilose, gland- 

 ular or pruinose. Ultimate segments small, veins forked. Receptacles 

 terminal on the veins, punctiform ; indusium reniform, or linear, forming 

 round, oblong, or linear sori. 



C. GLAUCA (Cav.) Mett. 



Rhizoma repens, squamosum, squamis lanceolatis, brunneis, integris, 

 longissime attenuatis; stipes ad 15 cm. usque altus (in speciminibus 

 patagonicis), validus, rigidus, canaliculatus, atrobrunneus ; frons triang- 

 ularis, glaberrima, 3-pinnata; pinnae lineares, obtusae, marginibus re- 

 flexis, scariosis, undulatis, integris, indusiformibus ; sporangium mag- 

 num, ellipticum, annulo latissimo, piano, 2O-24-articulato ; sporis globosis. 



Patagonia, the praeandine district of the Chubut Territory ; Chili. 



Description. Rhizome creeping, covered with brown, lanceolate scales ; 

 stipe (in Patagonian specimens) up to 1.5 dm. tall, rigid, canaliculate, dark 

 brown ; frond triangular, glabrous, 3-pinnate ; pinnae linear, obtuse with 

 reflected, scarious, undulating, entire margins ; sporangium large, ellipti- 

 cal, with broad annulet ; spores globular. D. 



Add Macl., p. 133: 



PELL^EA Link. 



Small i-3-pinnatifid ferns with sori in the upper part of the free veins 

 or laterally confluent, as if submarginally, with broad thin indusium. 

 Fertile pinnules narrower. Stipes 'dark-colored, shining. 



P. GLAUCA (Presl) Sm. 



Stem tufted, 10-20 cm., dark chestnut, shining, naked. Frond 7-10 cm. 

 each way; deltoid, 4-pinnatifid ; lowest pinnae largest, and pinnules on 

 lower side larger, lance-deltoid, and cut ; last divisions 3-25 mm., linear- 

 oblong, crenate, tomentose underneath. Involucre coriaceous, rolled 

 down over the sori. 



