126 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



[Vol. 9 



Distribution: Brazil. 



Specimens examined: 

 Brazil: near Santarem, Para, September, 1850, Spruce (Gray 



Herb.), type? 



In the Mo. Bot. Gard. Herb., there are some immature spe- 

 cimens from "ditches of the Agulhas Negras, Serra do Itatiaia, 

 State of Santa Catharina, Brazil, Rio de Janeiro, March, 1894. E. 

 Ule." These consist of 4 or 5 leaves, 2-3 cm. in length, rather 

 soft, light green, with fairly numerous stomata and no evident 

 peripheral strands. There is fragmentary material of megaspores, 

 almost smooth or lightly marked with wavy prominences;' the 

 diameter appears to be 400-468 u. The microspores,: 23-27 n 

 long, are smooth or with minute tubercles. The form was placed 

 by Eaton in /. amazonica. Such fragmentary, doubtfully mature 

 material is difficult to place with certainty. The geographic 

 range is great if this form occurs in these two states at opposite 

 ends of Brazil in different river systems. 



Quite different specimens of Dusen's collecting from the same 

 station seem to accord better with /. Martii A. Br., though again 

 the spores are immature. 



22- I. Gardneriana A. Br. Verh. Bot. Ver. Brandenb. 4: 330. 

 1862; Mett. Fil. Lechl. Fasc. 11: 36; Kuhn in Martius, Fl. Bras. 

 I 2 : 647. pi. 79. fig. 1-4. 1884 ; Motel. & Vendr. Actes Soc. Linn. 

 Bord. 36: 349. 1883; Baker, Jour. Bot. 18: 110. 1880. 



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



Corm 3-lobed, 3-3.5 cm. broad; leaves erect, coarse, firm, 30 

 -32 cm. long, attenuate at apex, somewhat obtuse, obscurely 

 quadrangular; peripheral strands 4, strong; stomata present; 

 ligule triangular, obtuse, hardly half as long as the sporangium; 

 velum incomplete; sporangium dark, about 10 mm. long; mega- 

 spores 540-700 m in diameter, dark brown whether wet or dry, 

 with number of fine tubercles, distinct on all faces; microspores 

 very smooth, white, 35 |j in length. 



Distribution: Province of Goyaz in Brazil; Paraguay. 



Description from Braun and Kuhn. 



23. I. elatior F. Muell. in A. Br. Linnaea 25 : 722. 1852, and 

 Monatsber. K. Akad. Wiss. Berlin, 536. 1868; Motel. & Vendr. 

 Actes Soc. Linn. Bord. 36: 348. 1883. 



