108 
FERNS : BRITISH AMD FOREIGN. 
simple, entire, sqnamiferous. 6-8 inches long. Veins uniform, 
reticulated ; areoles large, elongated, trapezoid or hexagonoid. 
Fertile fronds broad, densely sporangiferous on the under side. 
1. H. crinitum, Fee. Acrosticbum crinitum, Sic. Plum. 
Fit. 1. 125 ; Hook, et Grev. Ic. Fil. i. 1 ; Hook. Fil. 
E.cot. t. 6. Dictyoglossum crinitum, J. Sin. Cat. 
Kew Ferns, 1846. — West Indies. 
32. ANETIUM, Kunze. 
Vernation uniserial ; sarmentum slender, furnished with thin 
membranous reticulated shining lanceolate scales. Fronds 
distant, simple, oblong-elliptical, acuminate, 6-20 or more 
inches long, smooth, membraneous. Veins uniform, reticulated, 
Genus 32.— Portion of mature frond, under side. No. I. 
forming trapezoid or hexagonal transverse elongated areoles. 
Receptacles undefined, 1h ; sporangia being thinly scattered or 
collected in small irregular groups over the whole under surface 
of the frond, or evident on the veins. 
1. A. eitrifolium, Splitg. Acrostichium citrifolium, Linn. 
Plum. Fil. t. 116. Antrophyum citrifolium, Fee. 
