236 APPENDIX. 103. SELAGINELLA. 



(15a) S. Perkinsiac, HieroH., Leaf!., VI, 2010. 



Shoots creeping, 30 cm. or more long, the branching between pinnate 

 and dichotomous, the stem stramineous, compressed, flexuose, when dry 

 copiously sulcate above, 1"? mm. thick, 10 mm. broad including the 

 lateral leaves; pinnae remote, sparingly 1 — 2-pinnate or subdichotomous ; 

 ultimate branchlets 5 mm. broad. Leaves heteromorphous; lateral leaves 

 dark-green above, paler and subolivaceous beneath; of the stem rather 

 remote, subhorizontal, very unequal-sided, obliquely falcate-oblong, sub- 

 acuminate, very minutely serrulate towards the apex, the upper side 

 entire or subentire at the middle, minutely serrulate and rather pellucid- 

 margined towards the broadly rounded base, the lower side entire in the 

 lower 'U, provided with 2 — 6 minute teeth at the narrowly rotundate- 

 truncate base, the largest leaves 5 mm. long by 2 mm. broad; of the 

 ultimate branchlets similar, close or approximate, more narrowed at the 

 base which is rotundate-cuneate on the upper side, to 2 mm. long by 'A 

 mm. broad; intermedial leaves dark-green, erect; of the stem obliquely 

 ovate-oblong, nearly straight, aristate, keeled, minutely serrulate, narrowly 

 pellucid-margined, the outer base produced, distinctly auriculate-cordate, 

 the inner base shortly rotundate-cordate, the largest leaves 3 mm. long, 

 the cusp Vs as long as the blade: of the branches growing gradually 

 smaller; of the branchlets rotundate-cuneate on the inner side at the 

 base. Spikes quadrangular, solitary, rarely double, 3 — 6 mm. long, IV2 mm. 

 diam.; sporophylla ovate, shortly aristate-acuminate, minutely serrulate, 

 keeled, pellucid-margined, to 2 mm. long; macrospores white or yellowish- 

 white, shortly rugulose to reticulate; microspores cream-yellow, provided 

 with stipitate-capitate projections on the basal side. 



Mindanao. 



(156) S. nesrosensls. mefon., Leaf!., VI, 2007. 



Shoots creeping, 15 cm. or more long, probably dichotomous in the 

 lower part, otherwise pinnate, the stem somewhat compressed, stramineous, 

 grooved when dry, 1 mm. thick, 7 mm. broad including the lateral leaves; 

 pinnaa remote, spreading, to 3 cm. long, sparingly pinnate or dichotomous; 

 ultimate branchlets to 4 mm. broad. Leaves heteromorphous; lateral 

 leaves subhorizontal or spreading; of the main rachis approximate, obliquely 

 falcate-ovate or falcate-oblong, unequal-sided, bluntish, acute or shortly 

 acuminate, black-green above, pale-olivaceous-green beneath, very minutely 

 serrulate towards the apex, the upper side whether or not entire at the 



