2. GLEICHENIA, MERTENSIA. 13 



10. G. (Mert.) Cunninghami, Hew. ; st. and costce beneath hairy and deci- 

 duously scaly ; jr. often proliferous, coriaceous ; brandies dichotomously flabel- 

 liform, glaucous beneath, and hairy ; pinnce linear-lanceolate, acuminate, often 

 falcate, 4-6 in. 1., -|-1 in. br. ; segm. linear, acute ; caps. 2-4 in a sorus. Hk. Sp. 1. 

 p. 6. t. 6. B. Hk.fil. N. Zeal. 2. t. 71. 



Hab. N. Zealand. 



11. G. (Mert.) ttmbraculifera, Moore ; st. and rachis deciduously tomentose and 

 subpaleaceous ;fr. often proliferous, flaccido-coriaceous ; branches dichotomously 

 flabelliform, scarcely glaucous beneath ; pinnce 4-6 in. 1., 1 in. br., lanceolate, sub- 

 caudato-acuminate, pectinato-pinnatifid ; lobes narrow-linear ; sori of 3-5 caps. 

 Mertensia, Kze. in Linn. 18. p. 114. 



Hab. S. Africa. Perhaps too near Q. Cunninghami of N. Zealand. 



12. G. (Mert.) pedalis, Klfs. ; st. and rachis with deciduous, chaffy scales ; fr. 

 often proliferous ; brandies dichotomously flabelliform, subcoriaceous, yellow- 

 green when dry ; pinnce linear-lanceolate, spreading or recurved, 4-6 in. 1., ^-^ in. 

 br., deeply pinnatifid, oblong-ovate, subglaucous beneath, horizontal, the margins 

 scarcely recurved ; sori of 2-4 caps. Hk. Sp. I. p. Q.f. 8. B. 



Hab. Chili, as far south as Valdivia ; Juan Fernandez, Bertero. 



13. G. (Mert.) cryptocarpa, Hk. ; glabrous ; fr. proliferous, coriaceous, deep 

 yellow or yellow-brown when dry ; branches dichotomously flabelliform ; pinnce 

 broad-lanceolate, suberect and compact, 4-5 in. 1., 1 in. br., pectinato-pinnatifid ; 

 segm. narrow- linear, strongly veined, the margins singularly revolute, concealing 

 the sori ; caps. 1-4 in a sorus. Hk. Sp. \.p. 7. t. 6. A. 



Hab. S. Chili and Chiloe ; Falkland Islands. 



14. G. (Mert.) quadripartita, Hk. ; fr. coriaceous, black when dry, rufous- 

 brown beneath, and there deciduously chaffy on the costse, not proliferous, only 

 once forked ; each branch flabelliformly dichotomous ; pinnae lanceolate, acumi- 

 nate, falcately curved, pectinato-pinnatifid, 4-6 in. 1., 1-lJ in. br. ; lobes narrow- 

 linear, subfalcate, sharply acute, the margins a little recurved ; caps. 1-3 in a 

 sorus. Mertensia, Poir. G. acutifolia, Hk. Sp. I. p. 7. t. 8. A. 



Hab. Straits of Magellan, Port Famine. Very dark coloured, quite black above when 

 dry, red-brown beneath, remarkable in not being proliferous. This and the three pre- 

 ceding species have a strong family resemblance, and a very compact habit ; yet each 

 seems to be uniform in its respective characters. 



15. G. (Mert.) revoluta, H. B. K. ; st. and rachis paleaceous, especially beneath ; 

 fr. repeatedly dichotomous, rarely proliferous, rigid, subcoriaceous (gemmae often 

 foliaceous) ; pinnce linear-acuminate, 5-7 in. 1., ^-f in. br., deeply pinnatifid, 

 much and laxly divaricated and falcate ; lobes ovate, horizontal, obtuse with the 

 margin recurved, subglaucous beneath ; caps. 2-4. Hk. Sp. l.p.7. t. 7. A. M. pru- 

 inata, Mart. (Kze.\ M. subflabellata, Brack. (Moore). 



Hab. Andes of Quito, alt. 9-10,000 ft., Humloldt. Brazil (Klotzsch in fferb. Nostr.). 

 Brackenridge ? Summit of the Blue Mountains, Jamaica, Purdie. My authentic speci- 

 men of M. subflabellata, Brack., is more glabrous, and has slenderer and less divaricating 

 nnnae than true revoluta. 



16. G. (Mert.) simplex, Hk. ; st. subpaleaceous, undivided ; fr. simple, linear- 

 lanceolate, pectinato-pinnatifid, acuminate at the apex, or, if undeveloped there, 

 ^ericeo-paleaceous (rarely, in that state, with circinate heads), 6-14 in. 1., |-1 in. 

 )r. ; lowest segm. free, all' obliquely patent, from a broad base linear-oblong, glau- 

 cous beneath ; caps. 2-4, mixed with rufous hairs. Hk, Ic. PI. 1. 1. 92. Sp. p. 7. 



Hab. Andes of Quito and Peru. 



17. G. (Mert.) pubcscens, H. B. K. ; st. and rachises often paleaceous or woolly ; 

 tranches of tlie/r. repeatedly dichotomous, subcoriaceous, leafy ; pinnce 6 in. to 



