96 HYMENOPHYLLUlvr. 



II. unilateiale, JVilld. Sp. PL v. ;?. 521 {according to descrip- 

 iio/i, but not according to a specimen from Martins). H. 

 Tunbriclgcnsc, /3. Kze. in Arot. Afr. Anslr. p. 7. H. pelta- 

 tinn, Desv. I. c. p. 33. Triclioiuanes peltatum, Poiret, in 

 Encycl. Bot. viii. n. 521, an H. dentatura, Cav.'^ — &. valves 

 of tiie involucres combined below. — y. segments narrower, 

 involucres smaller. 



Hab. Mountains and wet rocks, Enp;lancl, Scotland and Ireland. Cape 

 of Good Hope, Bourlton, &c. — i3. Cbiloe, Cuming^ n. 16. — y. Chiloe, Cu- 

 ming, 11. 19 mid 17. Valdivia, Bridf^es, n. 708. Tasmania, Gunn. Cape 

 Horn, Hcnnite Island, J. D. Hooker. — The differences between this and H. 

 Tunbridgense are detailed with fijreat precision by Mr. Wilson in the 'Sup- 

 plement to English Botany ' above quoted : but great though they are in 

 the respective forms of our own country, it often becomes difficult accu- 

 rately to distinguish the exotic ones : and it is singular that in almost 

 every country where one species is found, the other is found also. 



31. H. Peruvian um, Hook, et Grev. ; fronds oblong-lan- 

 ceolate pinnate, pinnae pinnatifid, the segments broadly linear 

 obtuse spinuloso-serrate, the lowermost forked, involucres 

 supra- axillary obovate semivalvate sessile situated at the in- 

 ner bases of nearly all the pinnae spinuloso-serrate at the 

 apex, rachis winged above. Hook, et Grev. Ic. Fil. t. 208. 



Hab. Trunks of trees. Province of Esmeraldas, elevation of 5000 feet, 

 Jameson. 



32. H. pectinatum, Cav. ; fronds linear-lanceolate elon- 

 gated pinnate, pinnae curving upwards pinnatifid only on the 

 upper side, hence the segments are all secund, erect, the 

 segments linear obtuse toothed chiefly towards the apex, in- 

 volucres occupying the apices of all the segments of the su- 

 perior pinnae ovate entire at the apex 2-valved to the base 

 broader than the segments, rachis winged above, stipes terete 

 smooth. (Tab. XXXIV. D.)— Cav. Pr^El. 1801, n. 687. Sw. 

 Syn. Fil. p. 146. JVilld. Sp. PL v. p. 425. 



Hab. San Carlos de Chiloe, Cavanilles Chiloe, Cuming, n. .3 and 18. 

 Woods, Valdivia, Bridges. Chronos Archipelago, Darwin. — A very distinct 

 and beautiful species, apparently peculiar to the more southern regions of 

 Western South America. The character of the toothing of the segments, 

 which is very conspicuous in the sterile portions, appears to have been over- 

 looked by authors ; the fertile ones are nearly entire. 



33. H. Jamesoni, Hook.; thin and membranaceous very 

 flaccid pendent, fronds linear-oblong elongate attenuated 

 ])innate, pinna; remote ovate pinnatifid, the segments linear 

 obtuse dentato-serrate, rachis flexuose winged above and as 

 well as the costae beneath crested with soft membranaceous 

 spines, involucres solitary axillary sessile broadly obovate 

 compressed spinoso-serrate 2-valved almost to the base, sti- 

 pes short slender capillary glabrous. (Tab. XXXV. A.) 



