143 195 
Species of doubtful position. 
202. Dryopteris Martini C. Chr. Index 276. 1905. — Fig. 26. 
Syn. Nephrodium connexum Kuhn; Bak. Fl. bras. 1°: 489. 1870; Syn. Fil. 502. 
Type from Cayenne, leg. ManriN (B!). 
I have seen only an imperfect specimen of this, which shows it being a very 
distinct species but of a very doubtful position. It is with the greatest doubt only 
I place it here under Cyclosorus; it could as 
well be referred to Steiropteris. Still it does not 
resemble at all any species of Sfeiropleris, while 
it in general habit closely resembles certain forms 
of D. oligophylla. It differs from all American 
species of Cyclosorus by the presence of a cal- 
lose aérophore at the base of the pinne beneath 
and by the sporangia being deciduously setose. 
Rachis quadrangular, finely puberulous by 
hamiate; deciduous’ hairs. Pinns up to 30 cm Fig.26. D. Marlini C. Chr. Fragment 
long by 3 cm broad, papyraceous; coste above "9?" the E ae a (13/868. 
somewhat strigose, coste and costule beneath v5 TOL SA RO 
setose by spreading, stiff, unicellular hairs; scales and glands none. Margins cut 
about two-thirds of the way down into falcate, acute segments with the edges 
somewhat revolute. Veins simple, about 16 to a side, those of the lower 4—5 
pairs connivent to sinus, below which is a narrow, cartilagineous and hairy mem- 
brane but no keel extending to the costa as in Steiropteris, the lowermost pair of 
veins generally truly united in the leaf-tissue and sending an excurrent branch to 
the membrane. Sori inframedial, furnished by a subpersistent, reddish, slightly 
setose indusium. Sporangia with 1—2 short, deciduous hairs. — I have not seen 
the lower pinnze and can not say whether the basal lower segments are reduced 
or obsolete as in D. oligophylla. 

Unknown species of $ Cyclosorus. 
Aspidium albicaule Fée, 8 mém. 102. 1857 — Mexico, SCHAFFNER nr. 245. 
2. Aspidium conspersoides Fée, |. c. 105 — Mexico, Orizaba, ScHaAFFNER nr. 335 
and 463. 
3. Aspidium pallidum Fourn. Mex. Pl. 1: 96. 1872; Dryopteris chlorophylla C. Chr. 
Ind. 257 — Mexico, Orizaba, BourGEAu nr. 2779 bis. These three are all, I 
believe, forms of what I have called D. augescens var. puberula. 
4. Aspidium Orizabae Fée, l. c. 104; Dryopteris Orizabae C. Chr. 281 — Mexico, 
Orizaba, ScHAFFNER nr. 464. Probably D. oligophylla var. pallescens. 
9. Aspidium pauper Fée, |. c. 103 — Martinique, Mll. RrvorRE. A small form of 
D. patens? 
6. Nephrodium oppositum Fée l. c. 108 — Martinique, Mlle. Rivorre. Probably 
D. mollis. 
