Pteris. ] POLYPODIACEA. 1245 
ne of Sterile, lateral pinne pinnately lobed, sharply 
oothe diverging somewhat obliquely from the 
b 
midrib [p. ae ensiformis 
; Lowest fertile pinne again pinnately divided :—{p. 1244] 
Lower pinne psa al unilaterally to outside, ae equally 
to both sides, simply p e semipinnata 
Lower pinnx twice or iri pinnately divided :— 
Rachis and coste naked............ quadriuurita var. Blumeana. 
Rachis and coste setigerous ......... quadriaurita var. setigera. 
tLowest veins from base of midrib of each segment uniting at ve 
tips with corresponding veins from base of adjacent midribs to form 
series of long loops along the midrib of each pinna, the other veins all 
—{p. 1244] 
free : 
ree veins extending to the margins of each segment......... biaurita. 
Free veins stopping short of the cnddleen ae margins of the 
geminata 
uden 
“Veins ail copiously anastomosing [p. 1244] 
2762. Preris tonerroutA Linn.; F. i. C. 106. P. amplericaulis 
tre: Say ( ) 
At ern. 
2762/2. Var. VITTATA. ‘Pz vite Fy J. 757-(Ed.G. B,.C.): 
undribun 
A fern, ae shortly creeping rhizome. 
2763. Prerts cretica Linn. #02106. 
. Bengal, often olivate, sometimes as if wild. 
A tufted fern; fronds sometimes variegated. 
2764. Preris peLLucripa Presl; F. I. C. 106. 
Chota Nagpur; Behar; E, Bengal. 
A tufted fern. 
2765. Preris ENSIFORMIS Burm.; F. I. C. 107. 
Chittagong. 
A tufted fern. 
2766. Preris semrprnnata Linn.; F. I. C. 109. P. dimidiata 
F, I. 758 (Ed. C. B. C.). 
Chittagong. 
graceful, tufted fern. 
2767. Preris qguapriaurita Retz var. sETIGERA F, I. C, 111. 
Chi ge 
A large, handsome fern. 
