MACLOSKIE : 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; spores ovate, glabrous. D. 



Family 4. GLEICHENIACE.E. 



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. - Macl., p. 135. 



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



Family 5. 



SCHIZyEA Sm. 



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



S. atistralis Gaud. Macl., p. 135. 



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

 Rio Palena ; Falklands ; also in S. Chili. 



Family 6. EQUISETACE^:. 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 8-9-goni, vage ramosi vel nudi; vaginae laxae, ampliatae, 6-10 

 mm. longae, virides, dentibus rufis, membranaceis ; rami sparsi vel 

 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. 



