THE TASMANIAN FLORA. 287 



P. FALCATA, Sm. Leaves lanceolate, the stalk hispid, 1-2 feet, pinnate. 

 Pinnules numerous, ouneate to lanceolate, acute, attached by the midrib only,. 

 1-2 inches. Pterisfalcata, R. Br. ; Pellmafalcata, Fee. 



Common, mostly in rocky pastures. Victoria, New South Wales, Queensland, 

 Asia, New Zealand. 



14. HTPOLEPIS. 



Sori close to the margin, minute, and covered by the incurved margin of the 

 leaf, which becomes a membranous indusium. 



H. TENOIFOLIA, Bern. Creeping. Leaf 8-24 inches, broad, much divided. 

 Great Lake, and .occasionally in shaded places. 



The Tasmanian plant is indistinguishable in habit and morphology from 

 Polypodium punrtatum, Th., and is without doubt an extreme form of 

 that fern. East Australia. New Zealand to America. 



15. POLYPODIUM. 



Sori discoid, without an indusium. Veins free. 



Plant creeping. Leaves large, much-divided... ... 1. P punctatum. 



Plant tufted. Leaves small, irregularly pinnate ... 2. P . gramviitidis. 



1. P. PUNCTATDM, Thun. Creeping, finely hairy. Leaf 1-3 feet, much-divided, 

 broad, ultimate segments obtusely toothed or lobed. Sori minute, approaching 



. the margin, which often recurves more or less to protect them. P. rugulosum, 

 Hook. 



Very common. Temperate Australia, Asia, Africa, New Zealand. 



2. P. 6EAMMITIDES, R. Br. Small, tufted, usually epiphytal. Leaves .3-6 inches, 

 once divided, irregular pinnul-es linear, "entire or obtusely toothed. Sori 

 |-| line wide, broadly elliptical. 



Common. Victoria, New South Wales, New Zealand. 



16. PHYMATODES. 

 Sori discoid. Indusium none. Veins freely netting. 



P. BiLLAEDCEEi, Presl. Stems widely creeping over stones and up trunks. 

 Leaves 6-12 inches long, entire or irregularly lobed. Polypodium pustulatum, 

 Forst. 



Very common. Eastern Australia and New Zealand. ' 



17. NEPHRODIUM. 

 Sori discoid. Indusium excentrically attached. Leaves much-divided. 

 Leaves nearly glabrous. Lobes of pinnules nearly 



obtuse ... ... •■■ ••• ■•• •■ ■•• 1. -ZV. decompositnm. 



Leaves hispid. Lobes acute 2. N.hispidum. 



1. N. DECOMPOSITUM, R. Br. Tufted, dark green. Leaves 1 foot high, not 

 very broad. Ultimate pinnules rather obtusely lobed. Sori minute. A.s/tidiutn. 

 decompositum, Spreng. 



Common in quiet damp places. Temperate Australia to New Zealand. 



2. N. HISPIDUM, Hook. Tufted. Leaves vaguely clothed with rigid bristles, 

 1 foot high, broad. Ultimate pinnules acutely lobed. Sori not minute. 

 Aspidi.um kispidum, Swartz. 



West Coast. Victoria, New South Wales, New Zealand. 



