MACLOSKIE I REVISION OF FLORA PATAGONICA. 19 



Description. Rhizome crass, covered with narrow, imbricate scales; 

 stipe glabrous, subcompressed, some few to 10 cm. tall; frond ovate or 

 subrhomboid, coriaceous, glabrous, pinnate ; pinnae few to about 13, opposite 

 or nearly so, linear-lanceolate, decurrent, subhorizontal, with cartilaginous 

 margins irregularly and remotely crenate ; the uppermost pinna sometimes 

 trilobate or very seldombilobate;sori crass, oblong; sporesovate, glabrous. D. 



Family 4. GLEICHENIACE^:. 



GLEICHENIA Sm. 

 G. CRYPTOCARPA Hook. Macl., p. 135. 



Also in W. Patagonia, by Rio Manso and Rio Aysen ; Canal Messier, 

 Penins. Tayto; Fuegia; Falkland. 



G. QUADRIPARTITA Hook. - Mad., p. 135. 



Occurs also in W. Patag., and the Guitecas Is. 



Family 5. 



SCHIZ^A Sm. 



S. FISTULOSA Labill., var. AUSTRALIS (Gaud.) C. Chr., Some Ferns, p. 4. 



5. australis Gaud. Macl., p. 135. 



W. Patagonia, Guaitecas Ids. Northernmost section of W. Patagonia ; 

 Rio Palena ; Falklands ; also in S. Chili. 



v 



Family 6. EQUISETACE.E. Macl., p. 136. 

 Add Macl., p. 136: 



EQUISETUM L. Horsetail. 



E. BOGOTENSE H.B.K. 



Caules plerumque fasciculati, asperi, transverse rugulosi, profunde 4-9- 

 sulcati, solidi, 6-10 cm. alti (in speciminibus patagonicis), tetragoni vel ad 

 summum S-p-goni, vage ramosi vel nudi; vaginae laxae, ampliatae, 6-10 

 mm. longas, virides, dentibus rufis, membranaceis ; rami sparsi 

 nulli, plerumque singuli-terni, rarissime 4-5-ni, nunc breves, nunc longi, 

 interdum ramulosi, 4-5-anguli; spica fusca, 8-15 mm. longa, oblonga, 

 obtusa, interdum brevi-apiculata ; stomata numerosa, phaneropora, in 

 valleculis unam seriem latissimam formantia. 



