53 105 



Polgpodiiim subincisum Mart. et Gal. Mém. Acad. Brux. 15: 43. 1842 from 

 Vera Cruz, Gaiæotti nr. 6290 (B, a single leaf onlj') is ralher this species than the 

 following, to which Kuhn referred it. 



var. Cookii Maxon in sched. (pro specie). 



Exactly D. strigilosa in pubescence and scales but in cutting almost identical 

 with D. Tonduzii; all pinnæ pinnatifid only and the segments entire or faintly 

 toothed, oblique and acute, the basal ones shortened. Lower pinnæ with rather 

 long petioles. 

 Guatemala: Alta Verapaz, near the Finca Sepacuite, on limestone cliffs, Cook and Griggs nr. 507 (W). 



44. Dryopteris Lindeni (Kuhn) O. Ktze. Rev. 3: 813. 1891 ; C. Chr. Ind. 275 Fig. 9b. 



Syn. Aspidium Lindeni Kuhn, Linnaea 3(5: 116. 1869. 

 Nephrodium Lindeni Bak. Syn. 493. 1874. 

 Aspidium Lindeni Fourn. Mex. PI. 1: 97. 1872. 

 Dryopteris Moreleiii 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 FouRNiER. The type-specimen in Mus. Paris from Teapa, Linden sine num., 

 after which Fournier named his new species, is exactly identical with the Kew 

 specimen of Linden nr. 1489, which I regard as the type-number of Kuhn'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 (costæ above 

 excepted) glabrous, costæ beneath with several small, light-brown, bullate scales. 

 Pinnæ 15 — 20-juga|f, short-stalked, the lower ones somewhat abbreviated, middle 

 ones 3—4 cm long, 1 — 1' u 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. Sahinii, 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. II 839 (W). 



