2978 BROADHURST: STRUTHIOPTERIS IN NortH AMERICA 
thinner fronds of S. Spicant, very finely punctate much as in S. 
exaltata, without scales; veins indistinct, without conspicuous 
glandular apices, vein spaces 10-12 to I cm. Sporophyls taller, 
25-28 cm. long; stipes slender, 9-13 cm. long, reddish brown to 
almost black, usually shining; lamina 7-16 cm. long, abruptly 
reduced at the base with slight indications of vestigial pinnae or 
gradually reduced with the lower pinnae sterile, the apex gradually 
or abruptly reduced; pinnae 12-19-jugate, 1-2 cm. long, 2-3 mm. 
wide, falcate, with an abrupt sterile tip I-2 mm. long, the base 
dilated; indusium delicate, entire; sporangia tobacco brown or 
darker. 
Type: Miiller 1491, no. 61 in Meissner herbarium (Y) from 
Orizaba, Mexico. 
DistriBuTION: Known from Mexico only. 
SPECIMENS INCLUDED: Mexico: State of Hidalgo, Trinidad, 
wet banks, Pringle 8752 (N). State of Hidalgo, Barranca, below 
Trinidad Iron Works, 5,700 ft., Pringle 13808 (N). Chiapas, 
Ghiesbreght 207 (Kew; College of Pharmacy, Columbia University). 
The type of L. Gheisbreghtii Bak., Ghiesbreght 207, cannot be 
distinguished from S. stolonifera, though Christensen in his Index 
Filicum considers it a valid species. One or more of the taller 
sterile fronds in the two type numbers seen have wider sinuses, 
giving the lamina a slightly more open appearance than the 
rest of the fronds of these or of the other specimens of S. stolonifera- 
The College of Pharmacy specimen of Ghiesbreght 207 has also @ 
short, undeveloped stoloniferous shoot. : 
S. stolonifera differs from S. Spicant in texture, never possessing 
the smooth almost transparent pinnae of the more delicate spec” 
mens nor the coriaceous texture of the smaller fronds of S. Spican. 
The lamina is much smaller, and the pinnae often lie so close 
together that the lamina usually appears lobed rather than fully 
pinnate; the pinnae are never linear, and as indicated in the key, 
are proportionately much broader than in S. Spicant. Three pot 
of S. stolonifera, now in the New York Botanical Garden ©” 
servatories, have the shorter sterile fronds arranged in a flatt 
rosette at the base, one of the taller sterile fronds at an angle ° 
about 30 degrees, and the fertile ones erect or almost s0- anes 
they resemble S. Spicant; it would be interesting to know if » 
Spicant is ever stoloniferous. 
(To be concluded) 
