90 BOTANICAL GAZETTE [January 



i'':439; Christensen, Ind. Filic. 62; Campbell, Eusporangiatae, 

 Publication no. 140, Carnegie Institution of Washington 203; 

 LoTSY, Vortrag Bot. Stammesgeschichte 2:675. 



Key to species 



Indusium scales present between two rows of sporangia in a sorus. . . .A. Henryi 

 Indusium scales absent between two rows of sporangia in a sorus. 



Pinnae nearly entire, scales brown A. subintegra 



Pinnae serrulate. 



Scales dark brown or blackish A. tamdaoensis 



Scales brown A. Somai 



Archangiopteris Henryi Christ et Giesenhagen, Pterido- 

 graphische Notizen, Flora 86:77. 1899; Gwynne-Vaughan, On 



_ the anatomy of Archangiopteris Henryi, 

 etc., Ann. Botany 19:257-271. 1905. 



Habitat. — Mengtzu (Yunnan) ex Henry. 



Archangiopteris subintegra Hayata, sp. 



nov. (fig. i). — Rhizoma horizontaliter vel 

 Fig. I. — Archaneiopteris , . , ,. . . • 



,. , „ . plus minus oblique repens, in specimme 



subintegra Hayata. ^ ^ r- ' ... 



nostro exsiccato 9 cm. longum cum reliquiis 



stipitum 4 cm. latum dorsiventrale reliquiis stipitum et stipulis 



persistentibus dense obtectum, radicibus incrassatis e latere 



ventrah rhizomatis oriundis. Stipes 70 cm. longus erectus basi 



dense sursum pauce squamulatus, squamulis lanceolatis, duobus 



locis basi et medio incrassatus, parte basilari incrassata i cm. 



longa totiusque lata stipulata, commissuris ut videntur obsoletis. 



Frons simpliciter pari- vel impari-pinnata in ambitu obovata, 



pinnis 5-7, superioribus majoribus lanceolatis, circ. 25 cm. 



longis, 5 cm. latis apice acuminatis ad caudas lineares abeuntibus 



(cauda 2-3 cm. longa serrulata), basi acutis margine cauda 



serrulata excepta fere integris; costa utraque pagine elevata, 



venis simplicibus vel a basi furcatis, venis et venulis parallelis a se 



2 . 5 mm. distantibus patentissimis a costa angulo 85° egressis 



subrectis sursum plus minus recurvis; pagine supra nitida atro- 



viridi, subtus pallidissima; petioluhs incrassatis 7 mm. longis 



squamulatis; textura membranacea. Sori lineares, i cm. longi, 



I mm. lati utroque latere costae i -seriatim inter costam et marginem 



