82 
3. Sagenia Thumtesii. (Becld.) Caudex stout, ascending, stipes rachis and costa beneath ebeneous glossy, fronds 2-3 feet long, 
oblong or ovate, firm, coriaceo-membranaceous, pinnate or below bi-tri-pinnate, the apex pinnatifid, pinna? nearly opposite, lower ones 
petioled, upper ones sessile, oblong acuminated, variously lobed, and pinnatifid often unequally, segments acuminated or obtuse, 
entire or obtusely lobed, margins ciliated, veins and costa on the uppper side slightly ruf o-pubescent, glabrous beneath, veins forming long 
costal areoles along the rachis of the pinnie from which proceed several free or anastomosing veinlets, veins from the costa of the seg- 
ments forming small costal areoles (from which proceed free veinlets), or free, simple, forked or pinnate, the superior veinlets terminating 
with a sorus far within the margin, all the veinlests terminating with a thickened apex within the margin, involucres reniform.— Sagenia 
cicutaria, Var. ^. — an species dist. Thivaites' En. part \. 
Nearly allied to Sagenia coadunata of this work, though very similar to that Fern in form and general aspect, the venation is 
more like that of S. gigantea. 
Ceylon. (C. P. 3331.) Badulla, near Ondaatche ; Hinidon Pattoo, not uncommon. 
PLATE No. CCXLIV. 
4. Sagenia pteropus-jnimr. (Bedd.) Stipes of the sterile fronds shoi't, clothed at the base with dark brown linear scales, more 
or less winged towards the apex, fronds 8-12 inches long, sub-coriaceous, tri-partite or sub-pinnatifid, lower segments 2 to 4 inches long 
with a large basal lobe, upper portion more or less pinnatifid and irregularly, fertile fronds on a much longer stipe very much contracted, 
pinnatifid with the lower segments bi-lobed, primary veins pinnate with the veinlets in between forming numerous pretty regular areoles 
within which are free included re-curved forked venules. Sori in two rows between the primary veins, generally on free veinlets or some- 
times at the joining of two anastomosing veinlets. — Sagenia pteropus, variety minor. Thivaites. 
Ceylon. (C. P. 3808.) Paradenia. 
This may be only a dwarf variety of " Sagenia pteropus," but it seems rather to deserve the rank of a distinct species. Mr 
Thwaites says that it grows intermixed with " Sagenia pteropus," normal form and " Gymnopteris quercifolia" and suggests that it may 
be a hybrid between the two. 
PLATE No. CCXLV. 
Lastkea. (See page 33.) 
1. Lastrea calcarata. (Bedd.) Caudex short, tufted rooting, stipites scaleless, 3-8 inches long, fronds 8-18 inches long, coriaceo- 
membranaceous, rigid oblongo-lanceolate pinnate, perfectly glabrous except on the rachis, pinnae alternate or sub-opposite — 10-14 pair 
1 and \ inch long, attenuated and entire at the base, above more or less pinnatifid, but never more than h down to the costa, veins pinnate 
with thickened apices, terminating just within the margin. Sori, one on each vein a little above the centre, involucres reniform, glabrous. 
A. (Lastrea) falcilobum, Var. ^. Hook. Sp. Fit. iv, p. 108. 
Nearly allied to L. falciloba, (Plate CL. of this work) but sufficiently distinct to entitle it to the rank of a species. Sir W. 
Hooker's two species " L. falciloba" and " calcarata," seem to be one and the same ; in fact, the same number of tlie Ceylon Catalogue, 
(C. P. 1363), is referred to both. I have retained the name of the latter for this species. 
Ceylon. (C. P. 3050.) 
PLATE No. CCXLVL 
2. Lastrea concinna. (Thwaites.) Caudex short, stipites scaly at the base, fronds lanceolate or triangular — lanceolate glabrous, 
shining with the stipes about 2 feet long, pinnee lanceohite acuminate, pinnules trapezoideo lanceolate, crenato-lobate, lobes sparingly denti- 
culate, veins .simple, forked, or pinnate, terminating with a thickened apex within the margin, superior veinlet soriferous at its apex — 
involucres small, reniform glabrous. Tliwaites En. Cey. PI. 
Ceylon. Singhe Pi,ajah Forests. (C. P. 3798.) 
Nearly allied to " Lastrea deparioides," Hook. (Plate CIV of this work) ; and Mr. Thwaites suggests th.at it may be a form of 
that species, without intermediate forms, however it would hardly be safe to unite them. 
PLATE No. CCXLYIL 
