6 96. MARSILEA. 



1. EUMARSILEA 



I. Leaflets with spurious veinlets between tlie reed veins. 



(I) M. coromandelica. 

 J.f. Leaflets without spurious veinlets. 



2. Petioles densely tufted. (2) M. quadrata. 



9.9. Petioles not densely tufted, often remote. 



3. Sporocarps ribbed and bordered. (3) M. minuta. 



3.3. Sporocarps neither ribbed nor bordered. (4) M. crenata. 



(1) II. coromandelica, Burnt., Bk., Fern All., 147; Burm., 

 Flor. Ind., tab. LXII, fig. 3; Copel., Phlipp. Journ., IV C , 13; M. coroman- 

 deli(a)na, Wittd., Spec., V, 539. 



Small, aquatic or subterrestrial, glabrous in all its parts. Petioles 

 erect, TA Tk cm. long. Leaflets cuneate, 2 8 mm. long, rounded and 

 entire on the outer edge, with spurious veinlets of sclerenchyma showing 

 as pellucid streaks between the real veins. Pedicels erect, free, Unbranched, 

 filiform, not more than 1 to a leaf, 1 2 cm. long, inserted at the 

 middle of the base of the sporocarp. Sporocarps oblong, erect, 4 mm. 

 long, distinctly bordered and ribbed* with distinct basal teeth; sori 812 

 in a sporocarp. 



Celebes (t. Christ); Brit. India, Socotra. 



(2) M. quadrata, A. Br. 9 Bk., Fern All., 146; Copel., Philipp. 

 Journ., IV C , 13. 



Subterrestrial, densely tufted. Petioles 2V 7Vt cm. long. Leaflets 

 cuneate, 4 10 mm. long, rather silky, crenated on the slightly rounded 

 outer edge. Pedicels in a tuft with the petioles, at best 1 to a leaf, free 

 to the base, adnate to the whole base of the sporocarp, unbranched, 

 erect, 6 8 mm. long. Sporocarps nearly square, 2 mm. long, glabrescent, 

 unbordered, with 2 basal teeth, the upper one prominent, often long- 

 conical; sori 5 6 in a sporocarp. 



Borneo. 



(3) M. in in ii I ti L,., Bk., Fern AIL, 140, p. p.: Copel., Philipp. 

 Journ., IV C , 12; Rac,, Flor. Btz., I f 234, p. p.; M. erosa, Wittd., Spec.. V. 

 540; var. Zollingeri, A. Br., Bk., 1. c.; Engl. & Prantl, Nat. Ffl.Fam., 

 IS 418. 



