MACLOSKIE: PTERIDOPHYTA, FERNS AND FERNLIKE PLANTS. 135 



G. CRYPTOCARPA Hook. 



Frond proliferous with yellow-brown branches, dichotomously fan- 

 shaped. Pinnae pectinate ; their segments narrow-linear, with involute 

 margin concealing the sori. 



Chili ; Chiloe ; Falklands. 



G. QUADRIPARTITA Hook. (G. acutifolia Hook.) 

 Frond black when dry, reddish underneath, and chaffy on the costae, 



not proliferous, but once forking, and each branch fanways dichotomous. 



Pinnae lanceolate, acuminate, falcate, pectinate, 12 cm. long. 

 Magellan, at Port Famine, & W. Magellan, Churucca. 



Fam. 6. 



Leaves simple or pinnate. Sporesacs in spikes or panicles, ovoid, ses- 

 sile, with a small apical ring, opening by a vertical slit. 

 Species 75, mostly tropical. 



SCHIZ^A Smith. 



Small, slender ferns with filiform, linear fronds ; the fertile longer than 

 the sterile, bearing close distichous spikes. 

 Species 16. 



S. AUSTRALIS Gaud. 



Fronds not forked, wiry, subterete, 4 cm. long by .5 mm. broad, chan- 

 neled in front. Fertile frond with about 6 short spreading spikes on 

 each side. 



(Auckland Is. "Common on hard soil where nothing else grows save 

 lichens." J. D. Hooker) ; Falklands. 



Fam. 7. SALviNiACEyE. Water-ferns. 



Small floating plants, with 2-ranked leaves on an axis circinately devel- 

 oped, and i -celled sporesacs having a central receptacle, megasporangia 

 and micro-sporangia in different fruits. 



Species 20, widely distributed. 



AZOLLA Lam. 



Leaves minute, 2-lobed, a larger floating and a smaller submerged lobe 

 on pinnately branching stems. Masses of microspores with glochidia. 

 Species 5. 



