26 ANNALS OF THE ROYAL BOTANIC GARDEN, UALCUTTA. P. elongata. 
the Battaksland in West Sumatra (No. 390. Buitenzorg Herbarium) .seems to agree 
quite well with the Javan plant. The specimen collected by Teijsmann at Paya 
Kombo in West Sumatra (No. 2034 Buitenzorg Herbarium) upon which Miquel 
established his P. sumatrana has the spikes so young that the flowers are not yet 
visible; but I am unable to distinguish them from the spikes of the Javan specimens. 
of the same age. 
OnsERvATIONS.— The ediagnostic notes of P. elongata, are: leaves with leaflets in 
groups of 2—3. green above, whitish beneath; male spadix with spathels deeply 
concave, obovoid-rhomboidal, acute, about as long as broad, glabrous in their basal 
part, more or less sprinkled with appressed hyaline scales above, the axial part of 
the spike, of the spikelets and the pedicels of the flowers scabrid ; the male flowers 
9—11 mm. long with very small bracteoles and tomentose margin to the calyx; 
the female flowers 3—4 at most at each spathel, shortly pedicelled and with very small 
bracteoles ; the fruiting perianth broadly obconical subpedicilliform ; the fruit woolly. 
globose, 25—28 mm. in diameter, terminated by the small remains of the sessile 
stigmas but hot beaked ; the scales narrowly grooved along the centre, prolonged 
into a long enon laciniate-fimbriate upturned or spreading point; the seed 
globular-depressed, about 15 mm. in diameter. 
I have described the male spadix from Boerlage's specimen collected at Tij- 
bodas, and the female one from Zollinger’s specimen. The leaflets are very vari- 
able in size. In Boerlage's specimen they are 44 cm. long, 4 em. wide, and have 
the margins. and especially the apex minutely spinulous ; the same character is. 
present in all the specimens collected by Koorders, in which however the leaflets are 
broader, distinctly lanceolate or elliptical-lanceolate, 40—45 cm. long, 5—7 cm. broad; 
all are distinetly mealy beneath; but in a young leaf of Heyne's No. 52 from Salak 
the leafiets have quite ESA margins as have those that are united to the 
fruiting specimens from a plant cultivated in the Botanic. Garden. of. Calcutta,- dis- 
tributed under the name of P. assamica, gathered 14th March 1891, but which I 
confidently refer to P. elongata. In these specimens some of the fruits contain 
2—3 seeds, and have a slightly 2—3 lobed shape; the pericarp on the whole is 
about 1 mm. thick and has the cavity glossy, neatly marked by 3 fine raised lines. 
corresponding to the absorbed dissepiments. © 
PLate 13.— Plectocomia elongata Mart. & Bl.—An entire male spike ; portion 
of the upper part of the rhachis; one leaflet. From Boerlage's specimen in Herb. 
Beccari. 
PLate 14.—Plectocomia elongata Mart. & Bl—An entire spike with nearly 
mature fruits; the base of a leaf; intermediate portion of the rhachis with two. 
leaflets; detached fruits, one opened with two seeds; from the Calcutta cultivated 
specimen of 14th March 1891. One spathel with its female spikelet and detached 
female flowers ; from Zollinger's No. 1380. ( 
PLecrocomia ELONGATA BI. var. BANGKANA Becc. 
DEscRIPTION.—A pparently smaller than the Javan plant. Leaves also with 
smaller leaflets, distinetly greyish or subochraceous-pulverulent beneath, lanceolate: ' 
