53 105 
Polypodium subincisum Mart. et Gal. Mém. Acad. Brux. 15: 43. 1842 from 
Vera Cruz, GarEoTrTI nr.6290 (B, a single leaf only) is rather this species than the 
following, to which Kunw referred it. 
var. Cookii Maxon in sched. (pro specie). 
Exactly D. strigilosa in pubescence and scales but in cutting almost identical 
with D. Tonduzii; al pinne pinnatifid only and the segments entire or faintly 
toothed, oblique and acute, the basal ones shortened. Lower pinne with rather 
long petioles. 
Guatemala: Alta Verapaz, near the Finca Sepacuite, on limestone cliffs, Cook and Gricgs nr. 507 (W). 
44. Dryopteris Lindeni (Kuhn) O. Ktze. Rev. 2: 813. 1891; C. Chr. Ind. 275 — Fig. 9b. 
Syn. Aspidium Lindeni Kuhn, Linnaea 36: 116. 1869. 
Nephrodium Lindeni Bak. Syn. 493. 1874. 
Aspidium Lindeni Fourn. Mex. Pl. 1: 97. 1872. 
Dryopteris Moreletit C. Chr. Ind. 278. 1905. 
Type from Mexico: Tabasco, Teapa, leg. LINDEN nr. 1489 (Kew!, Mus, Paris!). 
This beautiful species was described under the same name both by KuHN 
and FounwrER. The type-specimen in Mus. Paris from Teapa, LINDEN sine num., 
after which FounNiER named his new species, is exactly identical with the Kew 
specimen of LiNDEN nr. 1489, which I regard as the type-number of Kunw's species. 
Rhizome oblique; stipites fasciculated, 15—20 cm. long, slender, at base 
clothed with numerous, brown, entire, from a broad base narrowed into a hair- 
like apex, patent scales, upwards like rachis deciduously scaly by similar but 
shorter scales, which from a bullate base are suddenly contracted into a long 
hair-shaped, rather flaccid apex, 2—2 mm long. Lamina lanceolata, 15—25 cm 
long, 6—9 cm broad, thinly herbaceous, fresh-green, both surfaces (coste above 
excepted) glabrous, coste beneath with several small, light-brown, bullate scales. 
Pinne 15—20-jugate, short-stalked, the lower ones somewhat abbreviated, middle 
ones 3—4 cm long, 1—1'/s cm broad, broadest at the base, incised to a narrow 
wing to the costa into oblique, obtuse, distinctly serrated segments. Veins 2—3- 
jugate, very oblique and not reaching the margin, simple or more commonly fur- 
cate with a posterior branch running into the teeth or lobe and an anterior one 
which is very short and soriferous. Sori small, medial, medial apparently apical 
on the short anterior branch of the furcate veins or dorsal somewhat below the 
apex of the simple veins, furnished with a persistent, reniform, glandulose indusium. 
D. Lindeni is certainly a most distinct species, by its scales not essentially 
different from D. Tonduzii; it is very closely related to D. Salvinii, resembling it 
in colour, shape of scales and its peculiar venation, by which it at once can be 
distinguished from the three preceding species. Besides the type-specimen I have 
only seen one more, which is absolutely identical. 
Guatemala; Alta Verapaz, Cubilquitz, 350 m, v. TuERCKHEIM nr. JI 839 (W). 
