153 



§12. HEMIONITIDEm 



(6.) Primary veins parallel forked, venules sparingly reticulated towards the margin. 

 SYNGRAMMA. J. Sm. Hook. Lond. Jour. Bot. iv. 168, t. 7. 8. 



(Callogramma. Fee, ; — Gymnogrammatis Sp. Aucl ; — Diplazii Sp. Presl. ; — Oxygonu Sp, Auct. ; — Callipteridis Sp. J. Sm. ;— 

 Grammitidis, Sp. Wallich.) 



Gen. char. Sori non-indusiate superficial, narrow linear, sub-parallel, unequally anastomosed, i. e., the lines more or less but 

 sparingly united, sometimes only at the ends ; the receptacles thus reticulated. Veins simple or forked from a central costa, parallel below 

 forming elongate oblique areoles, more closely reticulated near the margin forming one or two series of shorter areoles, the ultimate vein- 

 lets sometimes free. 



Fronds simple or pinnate sub-mexnbranaceous. Rhizome short erect or creeping — {Moore.) 



$YNGRAMMA WaLLICHIL (Hook.) Caudex creeping underground, stipites subfasciculate a span to 1 J foot long black, 

 purple, fronds subcoriaceo-membranaceous simple 6-10 inches long 1J-2 inches wide in the middle broad-lanceolate or subelliptico-acumi- 

 nated entire narrow cuneato-attenuate at the base, veins numerous approximate simple or forked anastomosing oiily at the margin into 

 1-2 rarely more series of a oblong hexagonal areoles, sori narrow-linear on all the straight veins, but scarcely extending to the anasto^ 

 mosing ones. — Hoolc. Sp. Fil. v, 155. 



The figure is taken from Sir W. Hooker's Sp. Fil. 



Hab. Singapore, Borneo, Sarawak, and Labuan. 



PLATE No. CLIII, 



