51. MONOGRAMXIE, § EUMONOGRAMME, §§ PLEUUOGRAMME. 375 



§ Euinonogramme. Frond with a central vein onlj/. Sp. 1 7. 



1. M. darececarpa, Hk. ; rhizome slender, wide-creeping ; scales linear ; fr. |-1 

 in. 1., \ lin. br. upwards, narrowed gradually downwards into a sliort slender 

 stem ; texture subcoriaccous ; sori sunk in a deep cleft on one side of tlie midrib, 

 the wing which covers it reaching nearly to the edge. — Hk. Sp. 5. ^>. 121. 

 t. 287. A. 



Hab. Labuaii, Borneo, Barber. 



2. M. graminea, Schk. ; rhizome slender, wide-creeping, clothed Avith squarrose 

 fibrillose brown scales ; /;•. 1-2 in. 1., j lin. br., flaccid, grass-like ; the casta 

 indistinct ; tlie soi-i in a line 2-3 lin. 1. near the apex, where the edges are incurved. 

 M. linearis, Klf. Hk. Sp. 5. p. 122. 



Hab. Cape Colony, Mauritius, aud Bourbon. 



3. M. subfalcata, Hk. ; rhizome slender, wide-creeping ; fr. 1 in. 1., -|- lin. br. 

 towards the point, tapering gradually downwards into an indistinct stem ; texture 

 subcoriaceous ; sori sunk in an unequal-sided longitudinal furrow, extending 

 about h in. from the apex. — Hk. Sp. 5. p. 122. t. 219. A. 



Hab. New Hebrides, C. Moore. 



4. M. trichoidea, J. Sm. ; rhizome very slender ; fr. 3-4 in. 1., densely coespitose, 

 threadlike, the fertile one dilated in two or three places for a space of ^ in., and 

 there bearing the sori in a longitudinal furrow, with a high raised edge on both 

 sides. — Hk. Sp. 5. p. 123. Vaginularia, Fee. 



Hab. Pliibppines, Cuming, 160. 



5. M. rostrafa, Hk. ; fr. densely csespitose, 3-4 in. 1., 1 lin. br., tapering to the 

 point and gradually downwards into an indistinct stem ; texture coriaceous ; tlie 

 surface naked ; the midrib very distinct ; the sori quite sunk in a longitudinal 

 furrow 1-2 in. \.—Hk. Sp. 5. p. 122. t. 287. B. 



Hab. Nicaragua, C. Wriglit. 



6. M. Junghuhnii, Hk, ; rhizome slender '' fr. densely cpespitose, grass-like, 

 flaccid, 6-12 in. 1., ^-\ lin. br. ; texture herbaceous ; sori deeply sunk in a furrow 

 on one, or, according to Brackenridge, on both sides of the midrib. — Hk. Sp. 5. 

 p. 123. t. 289. B. Diclidopteris angustissinia, Brack. Pleurogramme paradoxa, 

 Fee, oldest name. 



Hab. Ceylon, Java, Philippines, Queensland, and Polynesian Islands. 



7. M. graminoides, Baker ; fr. tufted, |-1| in. 1., \-\ lin. br,, simple or once 

 dichotomously forked, narrowed below to an indistinct stem ; texture coriaceous ; 

 midrib prominent ; sorus linear-oblong, arising from the midrib near the dilated 

 point ; the edge scarcely incurved. — Grammitis, Sw. ]\I. furcata, Desv., Hk. 

 Sp. 5. p. 121. Cochlidium, Kaulf. 



Hab. Jamaica, Brazil, St. Helena, and reported from Chili by C. Gay. 



§§ Pleurogramme, Fee. Fronds tvith indistinct simple lateral veins in addition 

 to the midrib. Sp. 8-9. 



8. M. (Pleur.) seminuda, Baker;//', ccespitose, 4-8 in. 1., 1^-2 lin. br., tapering 

 downwards into an indistinct stem ; texture coriaceous, rigid ; veins simple, 

 oblique, not reaching the edge ; sori not sunk in a cavity, originating as 2 rows 

 close to the midrib, which are ultimately confluent, covering the whole of the 



