138 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



[Vol. 9 



337 (Mo. Bot. Gard. Herb.),* muddy alligator hole at Goss- 

 man's, Dade Co., 25 February, 1905, Eaton 1244 (Mo. Bot. 

 Gard. Herb.); Fort Ogden, De Soto Co., 31 March, 1905, 

 Eaton 1455 (Mo. Bot. Gard. Herb.); without locality or 

 date, Eaton 832 (Mo. Bot. Gard. Herb.). 



The characteristic on which Small named the species /. alata, 

 namely, prominent wings in the lower parts of the leaves, is apt 

 to be found in any large-bulbed form, where the leaf bases be- 

 come broad. In regard to the spore markings, it is possible to 

 find transitional material {Harper 104&). 



32. I. Lechleri Mett. Fil. Lechler. 2: :!<>. 1859; A. Br. Verh. 

 Bot. Ver. Brandcnb. 4: 331. 1862; Baker. Jour. Bot. 18: 68. 

 1880, and Fern Allies, 126. 1887; Motel. & Vendr. Actes Soc. 

 Linn. Bord. 36: 357. pi. 15. jig. 1-2. 1883. 



Calamaria Lechleri Kuntze, Rev. Gen. PL 2: 828. 1891-93. 



/. socia A. Br. Verh. Bot. Ver. Brandenb. 4: 332. 1862. 



1. Karstenii A. Br. Verh. Bot. Ver. Brandenb. 4: 332. 1862. 



Conn 2-lobed; leaves 5-15, 4 cm. long, medium fine, tapering 

 to point, from base widened by membranous sheath ; peripheral 

 strands Done; stomata fairly numerous; sporangia 3-4 mm. long; 

 velum complete; mcgaspores white, 380-^440 \i in diameter, with 

 roughened surface, marked by very low tuberculate and serpen- 

 tine elevations ; microspores ashy brown, 30-36 p long, markedly 

 spinulose. 



Distribution : Argentina. 



Specimen examined : 

 Argentina: Province of Cordoba, 2 February, 1887, Hieronymus 



774 (U. S. Nat. Herb.). 



This specimen is labeled by Hieronymus as /. socia A. Br., 

 which is but a form of /. Lechleri Mett. according to Braun, who 

 at the same time described /. Karstenii, which seems to fit this 

 plant a little better because of spinulose microspores. Braun 

 reduced both species to /. Lechleri, widening its range. 



33. I. triquetra A. Br. Verh. Bot. Ver. Brandenb. 4: 332. 

 1862; Motel. & Vendr. Actes Soc. Linn. Bord. 36: 325. 1883. 

 Calamaria triquetra Kuntze, Rev. Gen. PI. 2: 828. 1891-93. 

 /. Andina Spruce in Motel. & Vendr. Actes Soc. Linn. Bord. 



