103. SELAGINELLA. A^ PLEIOSTELTOAE. 215 



largest; macrosporangia conspicuously protruded; macrospores yellowish- 

 or brownish-white, coarsely rugose to tuberculate or reticulate ; microspores 

 yellowish or pale-brownish, provided with reticulated, membranous wing- 

 like crests. 



Malaya; Cochinchina. 



(189) S. Eiigleri, Uiefon., in Engl. & Prantl, Nat. Pfl.Fam., l\ 704. 

 Differs from S. Willdenowii Bk. in having the stems and main stem 



opaque, the axillary leaves elongate, acute, distinctly 2-auriculate-plicate 

 at the base, the leaves of the lower plane acute, those of the upper plane 

 more acutely acuminate, the sporophylla longer, the macrospores verrucose, 

 the microspores densely verruculose on the basal side with the projections 

 capitate, tuberculiform or irregularly angular. — A plant, gathered in 

 Sumatra by Teysmann, probably a form of this species, has the stems 

 and main stem densely punctulato-asperulous. 

 iMzon, Sumatra (?). 



(190) S. plana. Hieron., in Engl. & Prantl, Nat. Pfl.Fam., P, 703; 

 S. canaliculaia, Bk., Fern AIL, 91, p. p.; S. caudata, Spring, Mon., II, 139, 

 p. p.; S. canaliculata, Bk., var. caudata, Warb., Mons., I, 107; S. Guichenotii, 

 Hieron., 1. c, 701; S. caudata, Spring, var. Guichenotii, Spring, 1. c, 140; 

 Lycopodium planum, Desv., Enc. Bot., Ill, 158. 



Shoots procumbent, ascending from a more or less trailing base, or 

 erect, up to 60 — 120 cm. long, sometimes springing from a divaricating- 

 scandent main stem, the lower part simple, short or long, to 45 cm. long 

 in the largest forms, the stem 3-stelical, angular, stramineous, woody, the 

 upper part pinnately compound; pinnae ovate, pinnate, with the largest 

 pinnulae once or twice pinnate again; ultimate branchlets to 1 — 2 cm. long. 

 Leaves firm, bright-green above, paler beneath, heteromorphous ; leaves of 

 the stem remote, obliquely cordate-oblong, acuminate; leaves of the branches 

 more close to subimbricate; leaves of the lower plane more or less spreading; 

 of the secondary rachises ovate-oblong, falcate, 2 — 3V4 mm. long, to 'A as broad, 

 acute or acuminate, entire, the upper side rather pellucid-margined, rotundate- 

 cuneate in the lower part, provided with a spreading or revolute, hyaline, 

 spur- or tooth-like auricle at the veiy base, the lower base produced, rotundate- 

 truncate to cordate; of the branchlets similar, but the basal auricle not 

 rarely wanting or rudimentary; leaves of the upper plane 'A as long, ovate or 

 obovate, acuminate, entire, pellucid-margined, broadly attached at the base, 



