92 



BOTANICAL GAZETTE 



[JANUARY 



subtus paucissime squamulata vel glabra; petiolulis 5 mm. longis 

 incrassatis. Sorus linearis utroque latere costae i -seriatim secus 

 venas vel venulas dispositus, 7-8 mm. longus, i mm. latus e costa 



circ. I cm. e margine circ. 4 mm. distans, 

 primum squamulis filiformibus indusii 

 obtectus demum nudus. 



M 



L.i 



Fig. 3. — Archangiopteris 

 Somai Hayata. 



Habitat. — Mt. Tamdao (Tonkin), in silva ad 

 3000 ped. alt., leg. B. Hayata, August 191 7. 



Allied to A. Somai Hay., but distinguishable 

 from it in the shorter sorus located much nearer 

 to the margin than to the costa, and in the less 

 patent veins. 



Archangiopteris Somai Hayata, Ic. 

 6:154. pi. 19 (fig. 3). 



Habitat. — ^Urai (Formosa) . 



PL Formosa 5:256; 



EXPLANATION OF PLATE I 



Protomaratlia tonkinensis Hayata: i, plant; 2, basal portion of stipe with 

 stipules and a commissura, seen from abaxial side; 3, same portion seen from 

 adaxialside; 4, scale on stipe; 5, young synangium; (5, full grown synangium; 

 7 , portion of same synangium showing chambers; 8, section of same. 



