42 ANNALS OF. THE ROYAL BOTANIC GARDEN, CALCUTTA. (D. Jenkinsianus. 
2-4 cm.; the under-surface is usually quite smooth or with only a few 
straggling bristles on the superficial mid-costa; the margins are closely and 
spreadingly bristly spinulous; the largest leaflets, those a little above the base, 
are usually 40-50 em, and in vigorous specimens up to 50-70 em, long, and 20-22 
mm. broad; those near the apex are gradually smaller and the ultimate ones 
rudimentary. Spadices ( d and 9) sub-axillary or inserted far below the mouth of their 
sheath, not very broadly fusiform before flowering, erect, with a stout 3-6 cm. long 
aud more or less densely prickly peduneular part; first or outermost svathe not very 
deeply concave-cymbiform, lanceolate, very gradually narrowing to a long beak, 
reddish or rusty brown, long persistent and  marcescent, acutely two-keelei on 
the dorsum, more or less furfuraceous and, except at the sides, covered, usually 
very densely, with fuscesceut or spadiceous, shining, needle-like cr even bristly 
Spines, which vary from a ‘few millimeters to 3 em. in length and spread in 
different ways; they have a bulbous base and are solitary or even fescicled, bu, 
never seriate; the beak is almost as long as the body and unarmed; inner spathes 
lanceolate-acuminate, very slightly concave or almost flat, of a cinnamon brown 
colour when dry, thickishly papyraceous, spreading during the anthesis, deciduous; 
the second spathe bearing sometimes a few needle-like spines on the two superficial 
dorsal keels; the others quite unarmed, glabrous inside, where of a darker colour 
than externally. Male spadiz 60-80 cm. long (including the beak) before the opening 
of the spathes, cupressiform during the anthesis, ultra-decompound, with 5-6 erect, 
appressed and approximate branches or partial inflorescences; the secondary axial 
parts more or less densely and deciduously rusty-furfuraceous; the internodes of the 
main axis 2-3 cm. long, obsoletely flattened, rather slender and very slightly swollen 
at the junctures; each branch forms by itself an ovate, densely flowered panicle, 
10-15 cm. long, covered in every part with a rusty-furfuraceous  scurf, very 
shortly stalked and divided again into numerous erect-patent secondary branchlets 
which bear sub-distichously or slightly unilaterally 10-15 erect appressed spikelets and 
on the whole form small cupressiform secondary partial inflorescences; secondary 
and tertiary spathes with a very short, membraneous, sub-bracteiform, incompletely 
embracing limb and suddenly prolonged at one side into a subulate ciliate 
point. The largest spikelets (the lowest of each  branchlet) 2-3 em. long, with a 
rigid, slender, zigzag sinuous axis and with 4-6 distichous flowers on each side > 
the upper spikelets gradually shorter and with fewer flowers; spathels with a short 
membranous bracteiform limb and prolonged at one side into a subulate bristly 
penicillate point; involuere scarious, cupular, truncate, sub-bidentate and with two small 
brushes of small cilia on the side next to the axis. Male flowers erect, oblong, 
obtusely trigonous, often slightly asymmetric, 4°5-5 mm. long, 2-2°5 mm. broad and 
slightly narrowing towards the apex, not very acute; the calyx campanulate, very 
superficially 3-toothed, each tooth with a small tuft of rusty hairs at its apex, and with 
3 groups of 9 strong veins outside, each group converging to one of the teeth; the 
corolla twice as long as the calyx, parted down almost to the base into 3 coriaceous, 
oblong-lanceolate, externally finely striate segments; filaments of the stamens subulate, 
. shortly cohering and thickened at the base, slightly inflected at the apex; anthers 
linear, versatile, obtuse at the apex, attached about midway, with cells a good deal 
disjoined; rudimentary ovary very small, hidden amongst the bases of the filaments, 
