362 BROADHURST: STRUTHIOPTERIS IN NORTH AMERICA - 
Maxon’s two plants vary in the bases of the sterile pinnae; in 
no. 5650 the base is gradually narrowed through a distance of 
about 2 cm.; in the other, no. 5442, the base is the widest part of 
the pinna. Excepting also the irregular character of the margin 
of the latter, the two plants are similar; there is nothing else from 
the mainland that approaches them in stipe characters, and only 
one plant (Tonduz 10907, the type of SS. sessilifolia) with such 
long, numerous pinnae. 5S. chiriquana differs from S. sessilifolia, 
however, in having brightly colored, shining stipes, the upper 
pinnae partly adnate, straighter pinnae with practically naked 
costae, and much lighter colored fertile pinnae with very delicate, 
deciduous indusia. 
11. S. Christii (C. Chr.) Broadh. comb. nov. 
Lomaria spissa Christ, Bull. Boiss. II. 4: 1092. 1904. (Not 
L. spissa Fée.) 
Blechnum Christii C. Chr. Ind. Fil. 152. 1905. 
Lamina very large; ‘‘rachis” 1 cm. thick, red-brown; pinnae 
20 cm. long, 2 cm. wide, the apex elongated, the base cordate and 
sessile, covering and extending beyond the rachis; margins finely 
dentate with regularly crisped undulations; costae scaly, the scales 
oval, appressed; veins prominently projecting below. (Sporo- 
phyls not described.) 
Type: In Christ’s herbarium; from Costa Rica. 
DIsTRIBUTION: Apparently limited to Costa Rica. 
SPECIMENS INCLUDED: Costa Rica: Tablaro, “1900 
08,” Braveas 143 (N). 
Christensen changed the specific name of Christ's Lomarta 
Spissa to Christii, because Fée had earlier used L. spissa for an 
African species. The very incomplete description given above aad 
been rearranged from Christ’s description of L. spissa. Following 
are some additions based upon the sheet from Christ's herbarium 
mentioned above. The fertile frond is slightly abnormal, havin 
broad sterile tips on some of the pinnae; the following aa 
have not been incorporated into the description, though a frag 
ment kindly sent by Christ indicates that these smaller fronds are, 
except in size, decidedly like his specimen. 
Sterile frond 52 cm. long; stipe 14 cm. long, 
the base, angulate, the scales numerous, deciduous, 
and 1 cm. thick at 
1-2.5 cm 
