1 6 Baker. A Summary of the new Ferns 



53*. Trichomanes venosum, R. Br. I cannot separate T. venus- 

 tulum, Colenso, in Trans. New Zeal. Instit. XII, 366. 



54. T. crispum, L. I can only separate as a variety T. digitatum, 

 Sodiro, Recens. 4, non Swartz. It differs from the type by 

 having the indusium protruded entirely from the lamina. 



61*. T. Hosei, Baker, in Journ. Linn. Soc. XXII. 223, tab. 12. 

 Sarawak, Borneo, Bishop Hose. 



61*. T. Beckeri, Krause; Philippi, in Linnaea, XXXIII. 305. 

 Chili. Habit of Hymenophyllum dichotomum. 



63*. T. Luersseni, F. M. ; Luerss., in Bot. Centralblatt, 1882, 440. 

 Mountains of Aneiteum, G. Braithwaite. 



70. T. rigidum, Sw. Surg. Halcro Johnston sends specimens con- 



necting with this species T. Hartti, Baker, in Card. Chron. 1 882, 

 II. 680, collected at Sierra Leone by the late Dr. W. Hart. 



71. T. apiifolium, Presl. Hymenophyllum ? puellum, Cesati, 



Fil. Polyn. Becc. 6, collected by Beccari on the mountains of 

 New Guinea, is probably a form of this species. 



POLYPODIACEAE. 



I should like to separate Hymenophyllaceae from Polypodiaceae as 

 a distinct sub-order, and divide the latter into four tribes as follows : 

 viz. (i) Indusium none (e. g. Acrostichum, Polypodiujn) ; (2) Indusium 

 formed only from the altered margin of the frond (e. g. Adi'an/um, 

 Pteris) ; (3) Indusium formed in part from the altered margin of the 

 frond, with an inner valve in addition (e. g. Dtcksonia, Lindsaya) ; 

 and (4) Indusium truly dorsal (e. g. Aspidium, Asplenium). 



Genus ii. WOODSIA R.Br. 



4. W. lanosa, Hook., must be omitted. It is identical with Gymno- 

 gramme Andersont, Beddome, Fil. Brit. Ind. tab. 100. 



6. W. insularis, Hance, must also be omitted. It is made up of a 

 mixture of W. ilvensis and manchuriensis, as is shown by the 

 type specimens, now at the British Museum. 



6*. W. Hancockii, Baker, n. sp. Stipes densely tufted, i-ij in. 

 long ; paleae ovate or lanceolate, pale brown. Frond lanceolate, 

 bipinnatifid, 2-3 in. long, \ in. broad ; rachis slender, strami- 

 neous, naked ; pinnae deltoid, \ in. long, cuneate at the base, 

 toothed on the outer edge ; lower lobes cuneate. Veins few, 



