165 217 
beneath rather densely pulverulent by very short-branched stellate hairs, surfaces 
otherwise glabrous. Leaf greyish-green, chartaceous. Veins simple or forked or 
subpinnate. Sori apparently exindusiate, about medial. Sporangia glabrous. 
Jamaica: Maxon nr. 1176, 1828, 1930 (C), 2544 (W). 
Cuba: Arroyo de Pedro, EcGEns nr. 4950 (B, C) — Monte Verde, WniGHT nr. 812 (S. 
var. tenebrica (Jenman). 
Syn. Nephrodium tenebricum Jenm. Journ. Bot. 1882: 326; Bull. Dept. Jam. 
n. s. 3: 143. 1896; W. Ind. and Guiana Ferns 228. 
Dryopteris tenebrica C. Chr. Ind. 297. 1905. 
A much larger plant than the type but scarcely different by other characters 
than the size. “Plant shuttle-cock-like in habit with sometimes as many as 45 
developed fronds to one rootstock" (Harris in sched.) Stipe 10—12 cm, lamina 
up to 30 cm long by 8 cm broad. Pinnz 4—5 cm long, ?/,—1 cm broad, serrulate 
or shallowly lobed. Veins pinnate in the lobes, 2—4 jugate, the basal pair ana- 
stomosing and sending a branch to the sinus. JENMAN describes the sori as indu- 
siate, the indusium being minute, soon obliterated. 
Jamaica: SHERRING (type, Kew!) — Holly Mount, Mt. Diabolo, Harris nr. 8998 (B). 
San Domingo: prope Jérémie, WEINLAND nr. 55 (B). 
— 916. Dryopteris reptans (Gmel.) C. Chr. Ind. 288. 1905. 
Syn. Polypodium repens Sw. Prod. 132. 1788 (not 130). 
Polypodium reptans Gmel. Syst. Nat. 27: 1309. 1791; Sw. Fl. Ind. occ. 
1655; Bak. Syn. 316. 
Aspidium reptans var. 3 radicans Mett. Aspid. nr. 237. 
Nephrodium asplenioides part. and subsp. reptans Jenman, Bull. Bot. 
Dept. Jam. n. s. 3: 212. 1896; W. Ind. and Guiana Ferns 229. 
Dryopteris radicans Maxon, Contr. U. S. Nat. Herb. 10: 490. 1908. 
Polypodium repandum Sw. Schrad. Journ. 1800?: 25. 1801; Fl. Ind. occ. 
1654; (C. Chr. Arkiv fór Bot. 9!': 31 fig. 7, tab. 4 fig. 2. 1910; illu- 
strations of SwanTz's type-specimens). 
Type from Jamaica, leg. Swartz (S!). 
When excluding the subsp. sclerophyllum, which is our D. asplenioides, JEN- 
MAN's treatment of this extraordinarily variable species under the name Nephrodium 
asplenioides is very good, when the Jamaican forms only are concerned. Other 
forms occur in Cuba and Central-America, but I have failed to find good characters 
by which these forms may be distinguished from the typical form described by 
Swartz. I can, however, not agree with MEgrTENIUS in considering D. cordata, D. 
sagittata and D. asplenioides forms of the same species: they are all in this paper 
dealt with as good species; also D. asterothrix, in my Index referred to D. reptans 
as a subspecies, appears to be a good species. Separating out these: four forms as 
