328 ON A COLLECTION OF FERNS MADE IN MADAGASCAR. 



P. incisa, Tlmnb. Between Tamatave and Antananarivo. 



P. triplicata, Ag. Between Tamatave and Antananarivo. 



60*. Pteris (CampterlO oligodictyon, Baker, n. sp. Frond 

 ample, tripinnate, green on both sides, naked on the upper surface, 

 furnished on the lower with minute brown hairs and dots. ^ Stipe 

 about half as long as the lamina, naked, stramineous, like the 

 rachises. Lower pinnae much the largest, deltoid, above a foot 

 long, more produced on the lower side, copiously bipinnate, with 

 caudate lanceolate pinnules and linear adnate decurrent tertiary 

 segments not extending quite down to the rachis, reaching an inch 

 in length, £ in. broad, the barren ones rather broader and minutely 

 inciso-crenate. Veins distant, distinct, ascending, forked at or near 

 the base and sometimes again higher up, anastomosing in costal 

 arches only along the penultimate rachises. Sori extending from 

 the base nearly to the tip of the segments; involucre narrow, 

 glabrous. Forest of Andrangaloaka. Habit of P. flabdtata, 

 Thunb., but the ultimate segments of the barren frond less 

 distinctly toothed and the veining Campterioid. 



Lomaria biformis, Baker. Forest of Andrangaloaka. 1 find 

 that we have incomplete specimens of this curious species, received 

 long ago from Dr. Meller. 



L. Boryana, Willd. 



L. proeera, Spreng. Forest of Andrangaloaka. 



24*. Lomaria microbasis, Baker, n. sp. Caudex erect, densely 

 clothed at the top with linear- subulate or linear-acuminate glossy 

 paleae J~§ in. long, with a pale brown edge and a nearly black 

 centre. Stipe of barren frond only 1-1^ in. long to the auricles 

 which represent the lowest pinnae. Lamina of the barren frond 

 oblanceolate-oblong, rigidly coriaceous, 1-1^ ft. long, 4-5 in. broad 

 at the middle, narrow gradually downwards, the three or four 



wn 



Pinnae 



24 



all except the uppermost distinctly separated at the base, the upper 

 adnate, the lower attached by the midrib only. Rachis slender, 

 naked, grooved down the face. Veins obscure, simple or forked at 

 the base. Fertile lamina with a longer stipe, its remote pinnae 

 2-3 in. long, f-1 lin. broad. Between Tamatave and Antananarivo. 

 Nearest Bon/ana, from which it differs in texture, and by its slender 

 rachis, small basal paleae, and much dwarfed lower pinnae of the 

 sterile frond. 



Asplermm Nidus, L. 



Anta 



nananvo. 



A. normal*, D. Don. Tanala. The plant called A. Trichomanes, 

 gathered by Mr. Pool, must also evidently be referred here, as 

 Mr. C. B. Clarke has suggested. The species has previously been 

 known only as Indian. 



A. hirtum, Kaulf. Between Tamatare and Antananarivo. 



J. hniulafitm. Sw. Tanala. 1 



A. Sandersoni, Hook. Tanala, and between Tamatare and 



Antananarivo. 



A. brae hypte run, Kunze. Tanala. 



