XIII. DRYNARIA. 
37 
the margin, and scattered over beneath with small cordate scales. Sori round, transversely uniserial on the upper 
part of the frond, immersed, forming large protuberances on the upper surface. Fronds lateral, articulated with 
a green creeping rhizome, which is scarcely the size of a goose-quill, and covered with soft scales. 
5 PiiTHATODES, J. Smith . — Fronds pinnatifid or pinnate, all stipitate. 
7. D. PUSTULATA, J. Smith (POLYPODITJJI, Forstcr; P. scandens, Forster ; P. cjespitosum, ZinJc ; Campy- 
LONEURUM ciESPiTosuM, Link ; P. SCANDENS and P. PUSTULATA, Presl). — A dwarf glabrous evergreen greenhouse 
Fern, from New Zealand. Fronds from a few inches to a foot long, simple lanceolate or pinnatifid with lanceo- 
late-acuminate membranous pale green segments. Sori round, uniserial, and submarginal. Fronds lateral, 
articulated on a small emspitose creeping rhizome. The simple state is the P. ccespitoswn. 
8. D. Billardieri, J. Smith (Polypodium, Broivn; Phymatodes, Presl; Chrysopteris, Link; Polypodium 
SCANDENS, Lahillardiere) . — A creeping evergreen greenhouse Fern, native of New Holland, New Zealand, and 
Van Diemen’s Land. Fronds glabrous, erect, about a foot high, simple or pinnatifid, with a few linear acumi- 
nate segments, coriaceous, deep green, attenuated at the base. Sori large, round, uniserial, immersed. Fronds 
lateral, articulated on a ciespitose creeping scaly rhizome, as thick as a goose-quill. 
9. D. VULGARIS, P. (Polypodium Phymatodes, Linneeus; P. pleopeltifolium, of gardens; Phyma- 
todes VULGARIS, Presl; Chry^sopteris Phymatodes, Link). — A beautiful evergreen glabrous stove species, 
native of the Mauritius, New Holland, East Indian and Malay Islands. Fronds rather erect, triangularly ovate, 
pinnatifid, one to one and a half foot long, decurrent at the base, light green and shining, with oblong-acute 
coriaceous segments, four to six inches long, the lower one often lobed. Sori round or ovate. There are two 
forms in cultivation. The fronds are articulated on a black scaly creeping rhizome, as thick as a swan’s quill. 
10. D. LONGiPES, /. (Polypodium, ZmiX; ; Chrysopteris, Zwi/i ; P. alternifolium. Link). — A coarse- 
looking evergreen stove Fern, from the East Indies. Fronds glabrous, two to two and a half feet long, pinnatifid, 
decurrent at the base, coriaceous, with three or four large broad oblong acuminate segments, six or eight inches 
long, deep green. Sori large, oblong, biserial, immersed. Eaohis and stipes pale green ; stipes more than half 
the length of the frond ; lateral, articulated on a creeping rhizome, nearly as thick as a swan’s quill. 
11. D. LONGissiMA, J. Smith (Polypodium. Blicme ; P. melanoneuron, Miquel; P. melanococca, Llort. 
Amstel.). — A tall slender evergreen stove species, from the East Indies. Fronds glabrous, pinnatifid, two to 
five feet long, narrow lanceolate, with lanceolate-acuminate membranous undulated distant pale green segments. 
Sori large, round, uniserial, immersed, forming elevated protuberances on the upper surface of the fronds. Fronds 
lateral, articulated on a scaly creeping rhizome, which is much elongated, and as thick as a swan’s quill. 
12. D. oxYLORUM, M. and LL. (Polypodium, Wallich). — A deciduous hothouse Fern, from the East Indies. 
Fronds glabrous, pinnatifid, decurrent at the base, a foot or more long, somewhat glaucous beneath ; seg- 
ments lanceolate, three to five inches long, acuminate at the apex, entire at the margin. Sori large, uniserial. 
Fronds lateral, articulated with a emspitose creeping rhizome. Introduced to Kew in 1852. This has an 
agreeable fragrance like new hay when dry. 
13. D; sessilis, M. and LI. — A deciduous stove Fern, a native of the East Indies. Fronds glabrous, lanceo- 
late, pinnate, two feet long, palish green ; pinnoe sessile, oblong-ovate, three to six inches long, undulated, 
acuminate at the apex, roundish at the base, and articulated with the rachis. Sori uniserial. Fronds lateral, 
articulated with a thickish caespitose creeping rhizome, clothed with narrow-lanceolate scales. This fern is 
closely allied to the Polypodium venustuni of Wallich, but differs in the size and vestiture of the rhizome, and in 
being quite glabrous. 
14. D. CAPiTELLATA, J. Smith (Polypodium, Wallich; P. juglandifolium, L). Bon; Phymatodes capitel- 
lata, Presl). — A neat evergreen stove Fern, from the East Indies. Fronds glabrous, pinnate, one to one and a 
half foot long, with a few oblong ovate mucronatc cuspidate membranous pinn®, which are round at the base and 
articulated with the rachis, glaucous, with a thickened white margin. Sori large, round, uniserial. Fronds 
lateral, articulated on a scaly creeping rhizome. 
15. D. leioriiiza, J. Smith (Polypodium, Wallich; P. cuspidatum, D. Bon; Phymatodes leiorhiza, Prrs/). 
— A very ornamental evergreen stove species, a native of Nepal. Fronds glabrous, pinnate, two to three and a 
half feet long, with lanceolate-acuminate bright green pinn®, the inferior ones petiolate six to eight inches long, 
the upper ones adnate and decurrent. Sori round, uniserial, very large. Fronds lateral, articulated on a thick 
creeping rhizome. 
16. D. PROPiNauuM, M. and H. (Polypodium, Wallich). — An ornamental evergreen stove Fern, from the East 
Indies. Fronds glabrous, ovate-lanceolate, pinnatifid or pinnate below, one to one and a half foot long, light 
green ; segments lanceolate-acuminate, three to six inches long, rather membranous, undulated, dilated, and 
adnate at the base, decurrent on the stipes, and crenately-serrate at the margin. Sori uniserial. Fronds lateral, 
articulated with a short thickish creeping rhizome, half an inch in diameter, and densely clothed with woolly 
scales. Introduced to Kew in 1852. 
5 Drvnaeia VEEiE, J. iShuV/j.— R hizome bearing sessile, sinuose, sterile fronds, with rigid veins. 
17. D. DlVERSiFOLiA, J. Smith (Polypodium, P. Brown; P. glaucistipbs, Wallich). — A beautiful evergreen 
stove Fern, from the East Indies, Java, and subtropical New Holland. Fronds of two kinds. Sterile fronds sessile, 
cordate-oblong, pinnatifid, three to four inches long. Fertile fronds slender, stipitate, reclining, one and a half to two 
