Flora of Crater Mt., Papua New Guinea 
Lae National Herbarium 
11734 Blechnaceae 
Blechnum dentatum (Kuhn) Diels 
Chimbu (Simbu) Province; Crater Mt. Wildlife Management Area, 
E of Haia village; colls, centered on 6° 43’ S, 145° 00’ E; hill forest 
with some anthropogenic disturbance, altimeter elev. 2550’ (777 
m). 
colls sequence 11708-11740; ground fern on landslip; caudex 
obliquely ascending, basal scales linear-acuminate, black, not 
clathrate; stipes green or black, channelled, fibrovascular bundles 
in a simple ring; leaves dimorphic, dry, brittle, dark green, 
underneath pale green; venation pinnate, free to margin, pellucid 
in transmitted light; fertile pinnae contracted, linear. 
coll: W. Takeuchi 1 1734 
date: March 8, 1997 
det: WT 
Flora of Crater Mt., Papua New Guinea 
Lae National Herbarium 
1 1 735 Polypodiaceae 
Microsorum commutatum Copel. 
Chimbu (Simbu) Province; Crater Mt. Wildlife Management Area, 
E of Haia village; colls, centered on 6° 43’ S, 145° 00’ E; hill forest 
with some anthropogenic disturbance, altimeter elev. 2550’ (777 
m). 
colls sequence 11708-11740; epiphyte on logs at edge of 
landslide; rhizome robust, cylindrical, dark dull green, phyllopodia 
present; stipes green, somewhat flattened above, vasculature 
dictyostelic; leaves pinnatisect, herbaceous, yellow-green; 
venation anastomose; sori in 3 ranks on both sides of the costae, 
exindusiate, yellow-orange. 
coll: W. Takeuchi 11735 
date: March 8, 1997 
det: WT 
