DA VALLIA. 



153 



sarmentose or climbing habit. Its fronds, 2ft. to 3ft. long and 1ft. to 2ft. 

 broad at the base, have their lower leaflets 9in. to 12in. long, 4in. to 6in. 

 broad, and spreading or deflexed (thrown back), and pinnules (leafits) cut 

 down to a narrowly -winged rachis (stalk). They are of a soft, papery 

 texture, and their small, terminal sori (spore masses) are nearly giobular.^ — ■ 

 Hooker^ Species Filicum, i., p. 189, t. 54c. 



D, (Humata) sessilifolia — Hum-a'-ta ; ses-sil-if-oF-i-a (stalkless-leaved), 

 Blume. 



A stove species, native of Java, the Celebes, and the Fiji Islands, with 

 very long, wide-creeping rhizomes (prostrate stems) densely clothed with rigid, 

 narrow scales. Its almost stalkless fronds, 2in. to 4in. long, l^^in. broad, are 

 cut down nearly to the rachis (stalk of the leafy portion) into parallel, narrow, 

 entire or sinuated (wavy-edged) lobes, the lower side of the lower ones being 

 sometimes pinnatifid (cut nearly to the midrib). The sori (spore masses) are 

 disposed in two rows in the lobes, and occupy the greater part of the space 

 between the midvein and the margin. — Hooker^ Species Filicum, i., p. 154. 



D. (Eudavallia) SOlida — Eu-dav-aP-li-a ; sol'-id-a (solid), Swartz. 



This is a stove species, of medium growth, native of Java and the 

 Polynesian Islands, and also known as D. Lindleyi. Its triangular fronds, 

 of a leathery texture, 1ft. to 2ft. long, 1ft. to IJft. broad, are produced from 

 a stout rhizome (prostrate stem) densely clothed with closely- pressed scales 

 or fibres, and borne on strong, upright stalks 4in. to Gin. long. They are 

 three times pinnatifid (cleft nearly to the midrib), and their deeply-toothed 

 segments are narrower and sharper in the fertile frond. The sori (spore 

 masses) are quite marginal, being situated in the teeth of the segments. — 

 Hooker, Species Filicum, i., p. 64, t. 42. Nicholson, Dictionary of Gardening, 

 i., p. 447. Lowe, Ferns British and Exotic, viii., t. 27. Beddome, Ferns of 

 British India, t. 104. 



D. S. ornata — or-na^-ta (ornamented), Wallich. 



This is the garden name of a large, handsome form of the above Sj^ecies, 

 from which it difiers only by its broader and slightly -cut segments. 



D. (Microlepia) speluncae — Mi-crol-ep'-i-a ; spe-lun'-cte (growing m 

 caverns). Synonymous with D. trichosticha. 



