1G5 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. 117(i. ISÜ«, 1930 (C), 2544 (W). 



Cuba: Arroyo de Pedro. Eggers nr. 4950 (B, C) Monte Verde. Wriohi nr. ai'2 (S . 



var. tenebrica (Jenman). 



Syn. Nephrodium tenebricum Jenm. Journ. Bot. 188*^; 326; Bull. Dept. Jam. 

 n. s. 3: 143. 1896; W. Ind. and Guiana Ferns 228. 

 Drijopferis 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 

 develo])ed fronds to one rootstock" (Harris in sched.). Stipe 10—12 cm, lamina 

 up to 30 cm long by 8 cm broad. Pinnæ 4—5 cm long, "/i— 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 itj'pe, Kew!) — Holly Mount, Mt. Diabolo, Harrks nr. 8998 Bl. 

 San Domingo: prope Jérémie, Weinland nr. 55 (B). 



216. Dryopteris reptans (Gmel.) C. Chr. Ind. 288. 1905. 

 Syn. Poliipodium repens Sw. Prod. 132. 1788 (not 130). 



Pülypodinm reptans Gmel. Syst. Nat. '2-. 1309. 1791; Sw. Fl. Ind. occ. 



1655; Bak. Syn. 316. 

 Aspidiuni reptans var. 3 radicans Metl. 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 repandnm Sw. Schrad. Journ. 180()'^: 25. 1801; Fl. Ind. occ. 

 1654; (C. Chr. Arkiv for Bol. 9": 31 fig. 7, tab. 4 fig. 2. 1910; illu- 

 strations of Swartz's type-specimens). 

 Type fiom Jamaica, leg. Swartz (S!). 



When excluding the subsp. scleropliyllum, 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 Mettenius in considering U. cordata, D. 

 sagittata and Ü. asplenioides forms of the same species: they are all in this paper 

 dealt with as good species; also D. asterolhrix, in my Index referred to D. reptans 

 as a subspecies, appears to be a good species. Separating out these; four forms as 



