96. MARSILEA. § 1. EUMARSILEA. 7 



Subterrestrial or aquatic, both with a wide-creeping rhizome. Petioles 

 2Vj — 15 cm. long. Leaflets cuneate, 2V2 — I7V2 mm. long, nearly or quite 

 glabrous, the outer edge rounded, deeply and mostly irregularly toothed. 

 Pedicels clustered, or connate at the base, often close to the base of the 

 petiole but not adnate to it, erect or divaricating, somewhat (IV2 X) 

 longer than the sporocarp, the apex adnate to the whole base of it. 

 Sporocarps 3 — 4 (rarely more) to a leaf, horizontal with regard to the 

 pedicels, a little longer than broad, 3 — 4 mm. long, truncate at the 

 base, rounded at the apex, with distinct border and ribs, when young 

 tomentose with yellowish or brownish, smooth, silky hairs, at length 

 glabrescent, with 2 basal teeth of which the upper is the longest and 

 often sharp, the lower the smallest, often obscure; sori 10 — 12 in a 

 sporocarp. 



Forma typica. — Br. India. 



War. Zollinger i : Like the type but the leaflets entire, crenulate 

 or crenate on the outer edge, and the basal teeth often nearly as 

 long. — Java? 



(4) M. crenala. JPr., Copel., Phihpp. Joum., IV^, 12; Pr., Rel. 

 Haenk., I, tab. XII, fig. 13; M. crenulata, Desv.., Engl. & Prantl, Nat. 

 Pfl.Fam., r, 418; M. minuta, i., Bk., Fern All., 140, p. p.; M. Mearnsii, 

 Christ, Philipp. Joum., IIF, 276; — var. timorensis, v. A. v. R., Bull. 

 Btz., 1911, I, 14. 



Leaflets entire or more or less crenate on the outer edge. Sporocarps 

 2 to a leaf but 1 of these sometimes abortive, neither bordered nor ribbed, 

 smooth but with the side walls sometimes more or less bulged out at 

 the centre. Otherwise like M. minuta L. 



Forma typica. — Philippines, Neto Guinea. 



War. tiinorenisis : Sporocarps 3 — 4 or more (rarely 2) to a leaf. — 

 Timor, Java. 



