THE FERN'S OF NICARAGUA. j-j 



The sori are often interrupted toward the base as repre- 

 sented in Figure 16. 



The fern is terrestrial in habit, growing in scattered tufts 

 in deep woods. 



Fournier and Hemsley [/did.) report it from Chontales. 



Genus LINDSAYA 1 Dry. 

 i. L. trapeziformis Dry. PI. xi, Figs. 1-7. 



Swz., Sjn. Fil., p. T19; Hook., Sp. Fil., vol. 1, p. 214; Eaton, Fil. Wr. et Fend., 

 p. 213; Hook, and Bak., S_vn. Fil., p. 107; Smith, Ferns, Brit, and For., 

 p. 230; Hemsl., Biol. Cent. Am., vol. 111, p. 606; Bak., Biol. Cent. Am., 

 vol. iv, p. 115 (from Costa Rica). 



L. Icpricur'ii Hook., Sp. Fil., vol. 1, p. 20S, pi. Lxll D. 



Baker and Hemsley [ibid.) also place L. horizontalis Hook, 

 in the synonymy of this species. It may be that L. trapezi- 

 formis has been made the common dumping-ground of too 

 many forms, yet a comparison of the various descriptions in- 

 dicates the possibility of the necessity of the union under this 

 name of the two species herein listed. The material at hand, 

 however, is not sufficient to decide this. There certainly is a 

 wide gap between the two forms here recognized as distinct 

 species. 



Only seven fronds of this species were collected. Of these 

 four are small (though fruiting), once-pinnate, and closely 

 resemble Hooker's tigure of L. lefiricarii; two have a large 

 lateral pinna or division at the base on one side; and one is 

 compound with two lateral pinna? on each side. In all the 

 fronds the stipes and rachises are brown, square (sometimes 

 even slightly four-winged), and with the terminal pinna; (or 

 pinnules) sub-rhomboidal, and very different from the terminal 

 pinnules of the following species, as is shown in Plate vm. 



Hooker's description of L. trapeziformis accurately defines 

 the Nicaraguan specimens. 



1 More frequently written Lindstsa. The author has no means at hand 

 to determine which should be accepted, and hence follows the compara- 

 tively recent works of Baker and Hemsley. 



IV -2 M 



