ICONES FILICUM SINICARUM 
PLATE 101 
LOXOGRAMME ENSIFORMIS Ching 
POLYPODIACEZ: 
LOXOGRAMME ENSIFORMIS Ching, sp. nov. 
Species magnitudine et configuratione L. involutae (Don) himalayense magis similis 
differt paleis rhizomatis duplo parvioribus, late ovatis, apice breve acuminatis (luminze 
parvioribus rotundatis, creberrimis); soris multo brevioribus, crassioribus, a se magis dis- 
tantibus, nec cost nec marginem frondis attingentibus; costa centralis supera prominenti. 
Rhizome short, erect, densely scaly, scales light brown, broadly ovate, short 
acuminate, entire, 5 mm long, consisting of numerous small roundish brown lumine; 
fronds cespitose, stipe short, thick, 2 cm long, compressed, lamina oblanceolate, long 
acuminate, 20-25 cm long, 3-3.5 cm broad at the upper two-thirds part, gradually at- 
tenuate along a long narrowly winged stipe; textwre chartaceous, greenish, naked, mibrib 
distinct on both sides, slightly keeled below and raised above; veims not seen but distinct 
against light, the lateral veins oblique, areole elongate, only occasionally with one short 
included veinlet; sori oblique, thick, brown, raised, about 5 mm apart, confined to the 
upper half of leaf, extending from near the costa to one-third way from the margin. 
Szechwan orientalis: Without locality, T. F. Lou 231 (type); without locality W1l- 
son 5348 (pro parte). Kweichow: Lin-tchang, Cavalerie 3389, April, 1909; Pin-fa to gan- 
chow, Cavalerie 1303, 478. 
The present fern appears so alike the Himalayan L. involuta (Don) that it might 
well be passed for that species, from which, however, it can easily be distinguished by its 
broadly ovate and half as long scales with short acuminate apex and much smaller, 
round and more numerous brown lumine, by leaves of green color, gradually attenuate 
downward from the broad upper half, and by much thicker, shorter, fewer and more 
widely separate sori extending from near the costa to only one-third way from the 
margin. The costa is slightly raised on the upper side. L. involuta (Don) has broadly 
lanceolate rhizomatic scales to cm long, consisting of large, clear elongate luminz, much 
longer, narrower and very oblique sori extending from costa to near the margin and not 
raised midrib above. 
Plate 191. Fig. 1. Habit sketch (natural size). 2. Portion of lamina, showing venation, and 
sori(x 3). 3. scale from rhizome (x 10). 
