336 SMITHSONIAN MISCELLANEOUS COLLECTIONS [VOL. 50 



Christensen. It is similar in its pinnate condition, enlarged hastate 

 terminal segment, and in having the narrow indusium at a consider- 

 able distance from the margin. It differs specifically, however, in 

 having its subfasciculate fronds borne upon a stout short-creeping 

 rhizome, in having the pinnae decidedly rounded at the apex (instead 

 of acuminate), and in its much smaller fronds, both fronds and 

 pinnae being about one-half the size of those of L. Leprieurii. 



LINDSAEA CUBENSIS Underwood & Maxon, sp. nov. 



A slender cespitose plant rising from a short, slender, creeping 

 rhizome with spreading brown scales 1 mm. or less in length. Fronds 

 light green, delicate, simply pinnate, the sterile spreading in a cluster, 

 5 to 6 cm. long, about 8 to 10-jugate, the fertile taller, erect, attain- 

 ing 20 to 30 cm., 10 to 25-jugate ; stipes sulcate, as long as the lamina 

 in the fertile fronds, shorter in the sterile, slender, stramineous,, 

 darkened near the base, smooth throughout; pinnae of the fertile 

 fronds short-stalked, mostly lunate, the apices obtuse, the lower 

 margins straight or somewhat decurved, or the lowest pinnae some- 

 times obliquely and broadly cuneate, these 8 to 1 1 mm. long by 5 to 7 

 mm. wide, the succeeding pairs very gradually smaller, smooth, the 

 outer margin denticulate ; veins free, about 4 or 5 times dichoto- 

 mously forked ; sori terminal on the veins, forming a continuous 

 band about 0.5 mm. distant from the margin; indusia subcontinuous, 

 pale, the margins irregularly and often deeply erose. 



Type in the herbarium of the New York Botanical Garden ; col- 

 lected in Cuba by Charles Wright, no. 3947. This number is also in 

 the U. S. National Museum. Other Cuban specimens are: 



Pinar del Rio: 



Herradura, Shafer, 427; 



El Guama, Palmer and Riley, 287 ; 



Mountains north of San Diego de los Banos, Palmer and Riley, 550.. 



Isle of Pines: 



Managua, Palmer and Riley, 1060 ; 



Nueva Gerona, Palmer and Riley, 1027; Curtiss. 



Among American species of the genus L. cubensis is unique in its 

 slight texture and delicate stramineous vascular parts, in which par- 

 ticulars, as well as in general appearance, it bears a superficial resem- 

 blance to the East Indian L. cultrata. The difform fronds are char- 

 acteristic. 



