166 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
all its parts, the rachises are less decidedly flexuose, and the secondary pinnz and the 
pinnules are not sharply retrorse as in 0. colombiana. The New Grenada plants cited 
by Mettenius ! as Lindsaya fumarioides may possibly be of this species. 
7. Odontosoria fumarioides (Swartz) J. Smith, Hist. Fil. 264. 1875. PLATE 4, 
Adiantum aculeatum L. Sp. Pl. 1096. 1753, in part, as to Jamaican plant figured 
by Sloane. 
Acrostichum aculeatum L. Syst. Nat. ed. 10. 2: 1820. 1759. 
Davallia fumarioides Swartz, Journ. Bot. Schrad. 1800*: 89. 1801. 
Trichomanes fumarioides Poir. in Lam. Encycl. 8: 82. 1808. 
Stenoloma fumarioides Fée, Gen. Fil. 330. 1852. 
? Lindsaya fumarioides Mett. Ann. Sci. Nat. V. Bot. 2: 217. 1864. 
TYPE LOCALITY: Jamaica. 
Distrisution: Restricted to Jamaica, ascending from the lowlands to 750 meters 
or rarely to 1,000 meters elevation. 
InLusrrations: Sloane, Voy. Jam. 1: pl. 61; Hedw. Fil. Gen. Sp. [pl. 20,] (aa 
Davallia aculeata). 
As explained under Odontosoria aculeata, plate 61 of Sloane, representing a Jamaican 
plant, formed the lesser part of the Linnean Adiantum aculeatum; and a Jamaican 
specimen of this same species, received from Swartz, was figured as Davallia aculeata 
by Hedwig in 1799. Two years later, however, Swartz distinguished the Jamaican 
plant as a new species, Davallia fumarioides. That he had notfully solved the problem 
is evident from his treatment in the Synopsis Filicum (1806), for he there recognizes 
three species: (1) D. aculeata of Jamaica and Santo Domingo, with citation of Sloane’s 
plate 61; (2) D. dumosa, a new species from Santo Domingo, with citation of Plumier’s 
plate 94; and (3) D. fumarioides, from Jamaica, with citation of Hedwig’s plate [20]. 
The new species, dumosa, is thus a synonym of true aculeata, if aculeata be typified 
upon Sloane’s plate 94, as seems proper. Sloane’s plate 61 is certainly misunderstood 
by Swartz, however, for it represents exactly the species illustrated by Hedwig and 
named by Swartz D. fumarioides. What Jamaican plant Swartz may have had in 
hand as D. aculeata in 1806 is uncertain; but it may have been that here described 
as Odontosoria jenmanii, a species not represented by any of the figures cited and until 
the present time never given a valid name. With ample material there can be no pos- 
sible confusion of these species; the only difficulty is found in explaining briefly the 
historical errors due to scanty material, misidentification of the plates, and a conse- 
quent misapplication of the species names. 
Odontosoria fumarioides is a very common species in Jamaica. Jenman’s comment? 
is as follows: 
‘‘Abundant among the lower hills on the skirts of woodland, among bushes, in hill- 
side pastures, and by open pathways, but not forming such dense thickets as the pre- 
ceding [O. jenmanii], of which it is the lowland analogue, ascending only to about 
2,500 ft. altitude, where that first appears. The two species hardly touch in their 
range.’’ 
The remarkably thin texture and narrow, deeply cut segments readily distinguish 
this from O. jenmanii, the only other Jamaican species. It is more closely allied to the 
Costa Rican O. gymnogrammoides. 
The following specimens are in the U. S. National Herbarium: 
Jamaica: Slopes above Ginger River (above Castleton), alt. 250 meters, climbing 
over bushes, Mazon 848. Trail from Bath to Cuna Cuna Pass, alt. 300 to 600 
meters, Maxon, 1709, 1727. Vicinity of Hollymount, Mount Diabolo, alt. 
750 meters, on open deforested bushy slopes, Maron 2292. Mansfield, near 
1 Ann. Sci. Nat. V. Bot. 2: 217. 1864. 
2 Bull. Bot. Dept. Jamaica I. 28: 6, 7. 1891. 
