7. 6LEICHENIA. § 3. MEUTENSIA. a. DICRANOPTERIS. 



59 



coriaceous ; surfaces naked or the under one tomentose on the costulae like 

 the rachises. — The description is taken from specimens gathered in Amboyna 

 by Boerlage, determined by Christ. 



■Ouruuo y Celebes, Batjan, Amboyna. Ce^t 



* (7) €1. linearis, Clafiee, Trans. Linn. Soc, Bot., 2'' Series, 1,428; 

 Ci dichotoma, Hk . , Bac, Flor . Btz . , I, 15; Bodd., FornE S.I., takLXXIj 

 G. Hm-manni, R. Br., B\.,En}im.,^i8; PolypodiumJin§g£&r^w'fTr;'^^ — 



var. rigida, Rac^^L_cj_j:zi_*sa'r-innTSaIis7R^c., 1. c; — var. ferruginea, Bac, 



1 . uii G.'yefniginea, BL , Enum . , 249 i . var i i omoiiginata ) CbniDl i; Anm i Bto n 



j iV) 77 j var. malayana, Cbpiot, 1. Oj | See Supplement 1. 



Frondo largo, — 4; — g— 4 — X dirhntnmnusj p^ch forlfing b earing a pair oi' 

 deflexed, unbranched branches at the base on the outer side, excepttb^er- 

 minal forkings, which ai"e commonly without accessory lateral branph^ST Ultimate 

 branches mostly with numerous + spreading segments ou^^/gS^ side. — 



Forma typica: Texture subcoriaceous ; surfacesiM^d, not glaucous. Ul- 

 timate segments under 4 c.M. long,, entire oreai^ginate at the apex. 



VaP. rigida: Texture rigidly cojastMous. 



War. nornialis: Under sjame glaucous. See the Appendix. ■ 



War. ferrugiiieaj,,.iffiiaer surface clothed with ferrugineous, furfura- 

 ceous tomentum, at iMst^n the costae. 



War. emat^inata: Texture very rigid; under surface clothed 

 oughoutwitn ferrugineous hairs. 



Wrfr. malayana: Very large; branches much elongated, with the 

 imat e e e gmonts 4 - 6 c . M . long or longer — e \ 



Tropical and extra-tropical. 



# (8) O. laevigata, Jlfc., Bac, Flor. Btz., I, 11; G. Ufurcata, BL, 

 Enum., 2S0; ? G. flagellaris, Spr., Christ, Farnkr. d. Erde, 342. 



Stipes terete or nearly so, often narrowly marginate. Fronds large, 

 repeatedly dichotomous; the lowest forkings divaricating or rectangularly 

 spreading, not rarely nudate. Ultimate segments linear, to 5 c.M. long, to 2 Yi 

 m.M. broai^, horizontally spreading, obtuse or retuse. Texture ± herbaceous ; 

 upper surface bright-green, under one paler, naked, or the costae cobwebby or 

 tomentose with ciliate, ferrugineous scales. Sporangia ± 3 — 4. — G. flagel- 

 laris, Spr., which has the under surface very glaucous, is probably another 

 species very near our plant, but not malayan. 



Malaya. 



