sno OF THE ROYAL BOTANIC GARDES, CALCUTTA. {D. períacanthus
very mmutely tubei-cled and pitted, 9-13 mm. in diameter, finely ruminated; the
clmlazal fovea very small, puiictiform, obsolete, placed almost in the ceutre of the
raplml side; embryo basal.
Habitat.—The type specimens were collectcd by Te!jsmann in Sumatra in
the Residency of Palembang at Muara dua (No. 3591 Heib. HorL Bot. Bogor.) and at
Muara Enim (No. 3580, Herb. Hort. Bot. Bogor.). It grows nlso in the Island" of Baiigka
at Sungei Ilan Herb. Hort. Bot. Bogor.); Borneo near Kuchin? in Sarawak
{Beccari P. B. No. 24S, and Low in Herb. Kew,}; Labuan {Loih in Herb. Kew.)-
Singapore at Bukit Timah [Ridlei, No. 10408 in Herb. Beccari); Johore at Tanjong
Kupang {Ridley No. 6276 and No. 6284—male-specimen). Native name.? : in Sumatra
at Muara dua "Rottan Udang" or '-Hui urang" and at JJuara Enim " Houe
Lnndak" (Tcijsmann^: in Sarawak " Rotan Manís" or the sweet Rotang on account
of its edible central shoot. Low gives the name: "Rotang sabut pania7ig duri."
Observations.—I iiave seen the type sijecimens of D. periacantkus, upon which
Miquel founded the species, otherwise it would liave been impossible from the description
alone to recognise in it my D. dksiiophjllus, as the description is very
misleading. The tjn^e specimens of 1'. periacanfhus in the Herbaria of Leiden,
Utrecht and Buitenzorg consist only of spadioes with mature fruit M'ithout
their spathes; nevertheless Miquel describes these as "duro coriaceae" and covered
-with short flattened seriate prickles, characteristics wliich most certainly do not apply
to the spathes of D, periacunfhus.
D. periacanthus in Ridley's Mat. Fl. Mai. Pen. ii. 185, is certainly not that of
Miquel; apparently it is one of the group of D. miralilh, as it is described with
decussating membranous spiniferous collars around the leaf sheaths; it has the petiole
armed with long spines on the edges, and the male spikclets are comb-like with vory
approximate flowers, like those of D. vertmllaris, with which Ridley mistakenly
believes it to have been confused in Hook, f, Fl. Br. Ind. vi, '470.
The type specimen of D. periacantlms numbered 3591 in the Herbarium at
Buitenzorg from Muara dua, has spadix in fruit exactly corresponding in sl;iie and
degree of branching to my specimen No. 248, at first considered by me as the type
of D. dissitophyllus, only its pedicellar part is prickly not only on the edges but
also on both surfaces, especially in its lower part. No. 3580 from Muara Enim of
the same Herbarium, does not differ from the preceding; the fruits of both are
about 17 mm. in diameter; the seed is not vory regularly globular, and is slightly
gibbous on the raphal aide, and varies in diameter according to the place where the
measurements are taken from 10 to 13 mm. Lobb's specimen in the Kew Herbarium
from Labuan has a spadix in fruit ; its peduncular part is strongly prickly on the
edges and on both surfaces; one spathe still remains attached to the spadix, ani is
armed with slender, seriate, 15 mm. long (at most) spines, not only on the keels
but also on the intervening surface; the fruits are spherical, 1.5-16 mm. in
diameter; the seed is globular and 9-10 mm. in diameter. Ridley's Joliore specimen
No. 6276 has a more slender spadix than the preceding; the fruiting panioJe is
about 40 cm. long; the perfectly mature fruit ia exactly spherical and 17-18 mm. in
D. mrB8cens\ BECCAEI. THE aPECIES OP DAEMO»OBOPS.
201
diameter; the seed is almost regularly globular and 12-13 mm. in diameter or
«hghtly longer than broad. Bangka specimens have a small panicle borne on a
Slender and long pedicellar part, slightly prickly only on the edges. In Ridley's
Singapore specmen No. 10408 the fruit i. 15 mm. in diameter. Ridley's No. 6284 Ta aLeeoDrdi 2s0 Tcmf . and moie acu'm' inate. - the
t r J SS-Danmonorop, peri.canth™ Mi,. Upper end of a leaf („nde, „rfacelfront
vcw of lower part of a petiole w.th a .„all portion of it, leaf-.heath an
ent,re .padr. „th very yoang fruit.: f,„„ P. B. No. 248 in Herb. Becctó A
K:::;: - ^^ »B»;net
.P'™"'""'" '"'"^'lia'e portion „, a leaf (undo,
Herb Lcari ''»i" ^ Eidley'. No. 6276 in
Put,; 90.-D.emonoropa peri.oanthn. Mi,. Portion of a leaf near upper end
(upper »rface); .u entire „»le .p»di,: ¡r„„ Kidley', No. 6284 in Herb &cca¿
80. DAMOTOSOPS Becc. in Perkins, Fragm. Fl Pliili„„
"Webbia" i, 357.
47 and in
D...a»imo,.-Eobu.t, scandenl, 20-33 n,. long. Zea/..i.alA, armed with larje
robust, am«.,, brown, solitary or seriate .pine,. W . large • petiole eloniaf
convex .n the basal part of tbe lower surface, and amred along' t b T „.re „7.1'
d^sum w,th long spines, flat and prickly on th. upper Lface IrLher n
A«». Eot. Bot. (}„„., Oiioom, Toi. XIZ.