136 ' ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. K. teysmannit. 
the sheaths densely covered with sharp spines ; probably, however, that spinescence 
is only an oceasional, not a specifie character. 
Grasshoff's Sumatran specimens exactly agree with those from the Andamans. 
Pirate 83.—(In the upper part of the plate) Korthalsia laciniosa Mart. Small, 
portion, near the end, of a leaf from the upper part of a fertile plant; branch of 
the panicle bearing spikes with flowers. Specimen from the S: Andamans, Prain's 
Collector No. 58 in Herb. Beccari. 
PLarte 85.—Korthalsia laciniosa Mart.—Portion of the spadix with not quite mature 
fruits; portion of the sheathed stem, and base of a leaf, from a not full grown 
plant (the leaf was terminated by a slender cirrus); intermediate portion of a leaf 
(whieh was terminated by a robust cirrus) belonging to an adult plant. From Man's 
specimens from the Nicobars, with the native name “Shamoa” (Herb. Beccari). 
PLate 86.—Korthalsia laciniosa Mart.—Portion of the sheathed stem and inter- 
mediate portion of a leaf from a not full grown plant. (The leaf had a not very 
robust cirrus.) From Man's specimens from the Apusmans, with the native name 
“Por” (Herb. Beccari). 
18. KomruHarsiA Teysmannna Mig. in Journ. Bot. Neerl, i, 16.:r.Prod FI. 
Sum. 255, 591; De Palm. Are. Ind. 17, 26; Becc. Malesia, ii, 76. 
K. robusta Bl. Rumphia, ii, 70 (as to the leaves only and partly). 
K. grandis Ridley, Mat. Fl. Mal. Penins. ii, 217; 
DzescRiPTION.— The largest of all known. Skeathed stem 2—3 cm. in diametef and 
at its upper and flowering end apparently considerably more. Leaf sheaths more or 
less spinous, thick and woody on the dorsum, of a thinner structure and often 
spli& and laeerated on the ventral side. Ocree closely sheathing, 8—10 up to 15 
18 cm. long, partially covered with a removable tobacco-coloured fugacious scurf, 
thinly coriaceous or papyraceous, truncate above, finally more or less ragged or 
disintegrated into fibres, armed with some scattered, broad, laminar, straight spreading 
spines. The intermediate leaves of the adult plants have a petiole 10—20 cm. long, 
10—12 mm. broad, spinous on the margins, and not having a distinct callus at its 
axilla; the pinniferous part is about 1°30—1°50 m. long, bears 8—9 leaflets on each side, 
and ends in a long robust clawed cirrus. The rhachis is armed below at the sides 
but not along the centre, with single robust claws. The leaflets are at first mealy, 
whitish beneath, and finally only slightly paler than above; those of the lower part of 
every leaf are oblong-cuneate, 25—30 cm. long, and only 7—8, cm. broad, and at times 
even less; the intermediate leaflets are larger and broader, cuneate-rhomboidal or 
trapezoidal, 30—35 em. long, 13—16 cm. broad, have li—15 main nerves, which 
end in as many double-toothed subulate points; the transverse veinlets are much 
interrupted and not particularly prominent. The leaves nearer to the base of the 
inflorescence are much reduced in length, have a very short petiole, and the 
rhachis closely clawed; their leaflets are considerably smaller than in the lower 
leaves, e or rhomboidal-cuneate ; distinctly plicato-pluricostulate, 8—12 
em. long, 3—6 cm. broad; the uppermost leaves are still more reduced, and 
have still narrower leaflets. Inflorescence large, up to 150 m. long. composed of 
