[Vol. 9 

 156 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



August, 1881, Study (N. Y. Bot. Gard. Herb.) ; sandy shores 

 at upper end of the Schluchsee, October, 1861, Schildknecht 

 & Thiry 799 (N. Y. Bot. Gard. Herb.) ; Titisee, September, 

 1868, Zickendrath (N. Y. Bot. Gard. Herb.). 



Russia: in Livonia, distr. Riga, "in lacu Bule-See", 10 September, 

 1901, Kupjjer 14912 (U. S. Nat. Herb.). 



40a. Var. asiatica Makino, Tokyo Bot. Mag. 18: 129. 1904. 



Differs from the type in having a broad velum, covering 2/3 

 to 3/4 of the sporangium, in bearing coarser spinules on the 

 megaspores, and in the smoothness of the microspores. The 

 author suggests that it is lacking in stomata by saying that it 

 differs from /. Braunii which has stomata and a spotted spo- 

 rangium. 



Distribution: rare. Lake Nojiri, Prov. Shinano. 



Description from Makino. 



41. I. Erochoni Motel. & Vendr. Actes Soc. Linn. Bord. 45: 

 45. pi 2. 1893. 



Corm 2-lobed; leaves 8-16, rarely more, 3-6 cm. long, fine, 

 tapering, rosy below, green above, with short, wide membranace- 

 ous margin at base ; stomata present but not common ; peripheral 

 strands none; ligule very short and broad; sporangium globose, 

 21/0-4 mm. long, partially (1/4-1/3) covered by velum; mega- 

 spores white, 450-525 p in diameter, much flattened in outline, 

 marked with very echinate, sharply toothed prominences ; micro- 

 spores 33-53 n in length, often nearly as wide. 



Distribution: France. 



Specimens examined : 



France: Lac de Naguilles (1854 m. alt.), Ariege, Motelay (Mo. 

 Bot. Gard. Herb.), TYPE; Lac de Naguilles, August, 1891, 

 Hy (Mo. Bot. Gard. Herb.). 



42. I. Braunii Dur. Bull. Soc. Bot. Fr. 11 : 101. 1864. 



/. echinospora var. Braunii Engelm. in Gray, Manual, ed. 5, 

 676. 1867. 



I. echinospora var. Boottii Engelm. in Gray, Manual, ed. 5, 

 676. 1867. 



