ft 



728 82. HTMENOLKPIS. 



Rhizome + creeping. Stipes articulate to the rhizome. Sterile part of 

 the fronds lanceolate; veins anastomosing copiously; areolae with free included 

 veinlets. Diels, in Engl. & PrantI, Nat. Pfl.Fam., I*, lig. 161, F— H; Hk. Bk., 

 Syn. Fil., tah. VIII, fig. 60, cc— ee. 



§■ Fertile region linear. 

 •{•. Fronds stalked. 



*. Fronds cartilagineous. (l) H. rigidissima 



^.it:. Fronds + coriaceom, sometimes membranaceous. (2) H. spicata 



(3) H. callifolia 



f.f./^ond* sessile. (4) H. brachystachys 



$.$. Fertile region spoon-shaped. (5) H. platyrhynchos 



(1) H. risidissiina, Christ, Bull. Herb. Boiss., 2« Serie, VI, 990 

 Rhizome firm, black, crowned with minute, brown, strigillose scales. Stipes 

 seriate, short. Fronds 1 — 2, linear-lanceolate, 8—16 c.M. long, 2 — 8 m.M 

 broad, the base narrowed, the sporangia occupying the upper */s — Vi "' 

 the frond. Texture cartilagineous, indurate; colour blackish-ferrugineous ; costs 

 distinct; veins hidden. Sori fulvo-testaceous. 

 Luzon, Mindoro. 



» (2) H. spicata, JPf., Christ, Farnkr. d. Erde, 129, fig. 561 : Hk. 

 Fil. Exot., tab. LXXVIH; Bedd., Ferns S.I., tab. XLVI; H. revolula, Bl., Eunm. 

 201; Acrostichum spicatum, L.f. (not L.), Rac, Flor. Btz., I, 51; A. plaly 

 rhynchos. Ces. (not Hk.), Fel. Becc. Poliu., 5; — var. latifrons, Bedd., Jo urn 

 of Bot,, XXVI, 6; — var. tenella; Acrostichum revolutum, Zoll., var. tenellum 

 Zoll., MS. in Herb. Bog. 



Rhizome creeping, the scales short, ovate-lanceolate, short-acuminate. Sti 



pes 1 — 7 C.M. long, firm, often dark-coloured like the costa. Fronds 15 — 4! 



^ c.M. long, '/j — 3 c.M. broad, linear-lanceolate, the lower part narrowed ver 



® gradually, the edge entire, or slightly and irregularly undulate, the upper par 



more or less suddenly narrowed into a linear, contracted apex 1 — 15 c.W 

 g* long, 2 — 4 m.M. broad, with the unaltered edge much recurved, quite enclos 

 ^ ing the sori when young. Texture rigid, chartaceous; surfaces naked; cost 



m distinct; veins hidden; areolae with free veinlets. Sori broadly linear, oc 



cupying the linear apex of the frond; capsules intermixed with peltate scales 



