ICONES FILICUM SINICARUM 
PLATE 236 
POLYSTICHUM KWANGTUNGENSE Ching 
ASPIDIACE 
POLYSTICHUM KWANGTUNGENSE Ching, sp. nov. 
Species Polysticho Yuani Ching affinis, differt squamis rhizomatis stipitisque angustioribus, pinnis con- 
fertis, subrectangulari-oblongis, marginibus crenatis, apice obtusis. 
Rhizome short, erect, densely radicose, together with stipes sparsely clothed in dark brown, broadly 
lanceolate, fimbriate scales; fronds caespitose, 10 or more together, stipe 10-12 cm long, stramineous, 
sparsely scaly, lamina 20-30 cm long, 2.5 cm broad, linear-lanceolate, acuminate, slightly narrowed towards 
the base, pinnate; pinnae 30-35 pairs, confert, deflexed, 1.2 cm long, 6 mm broad at the base, subrectan- 
gular-oblong, cut straight below, truncate above and hardly auricled with an acute apex, the lowest ones 
smaller, about 1 cm long, margin undulato-crenate with a few short mucronate teeth towards the obtuse 
apex; texture chartaceous, dry brownish-green, quite glabrous; veins forked, but pinnate in the anterior 
basal group, visible on both sides; sori small, generally 8 above, 2-3 below towards the apex, indusiate. 
Northern Kwangtung: Chu-yuan Hsien, on the large rock by the Sich Yuan Temple, S. H. Ko 53790, 
Nov. 21, 1933. | 
A very unique species not easily confounded with the related species by its subrectangular-oblong, de- 
flexed and crenate pinnae with obtuse apex. South China is poor in the species of Polystichum, chiefly 
because of the mountains there being as a rule not high enough to provide suitable environments for the 
genus. The discovery of the present species there is quite interesting floristically. 
Plate 236. 1. Habit sketch (natural size). 2. Pinna, showing venation and sori (X 4). 3. Scale from the 
base of stipe (X 40). 4-5. Sporangium with spores (X 100). 
