TAB. XXV. 



Aspidium (Polystichum) Thomsoni, Hook. 



Caudice brevi crasso obliquo apice squamoso, stipitibus basi 

 insigniter squamosis 3-4-uncialibus gracilibus stramineis 

 una cum rachi straminea setoso-paleaceis, frondibus digi- 

 talibus ad spithamteam lanceolatis acuminatis subchartaceo- 

 membranaceis sessilibus pinnatis, pinnis 3-4 lineas longis 

 sessilibus ovatis profunde pinnatifidis prascipue ad marginem 

 superiorem vel bipinnatis, pinnulis ovatis lobisque spinu- 

 loso-incisis serratisve, venis pinnatis venulis ultimis clavatis, 

 soris eolitariis in singula pinnula seu lobo majusculis dorso 

 venulas insertis, involucro subovato menibranaceo peltato 

 pedicellate niargine sa3pe eroso. 



Hab. Sikkim Himalaya, Hooker, fil. et Thomson. Above 

 Simla, Col. Bates. Kamaon, elev. 12,000 feet, Strachey 

 and Winterbottom, n. 9. 



This must rank among the smallest of the Polystichum- 

 group of Aspidium, approaching nearest to the smallest speci- 

 mens of Dr. Wallich's A.ipid. (Polystichum) oxyphyllum. The 

 involucre, if constant to its form and pedicel, is very re- 

 markable. 



Fig. 1. Fertile pinna, almost again pinnate, f. 2. Portion 

 with sori. ./I 3-4. Involucres: magnified. 



Cent. 2. i. 2o. 



