THE HERBARIUM AMBOINENSE. 309 
Pinanga sylvestris glandiformis prima, p. 38, t. 6, 
In the Encyelopedie (i. 241), and by Wilidenow (Sp. 
P]. iv. 595), this is called Areca glandiformis, 
Pinanga sylvestris glandiformis secunda, p. 39. 
I think that in the Andaman Islands I have found this 
palm, the nuts of which were used, instead of the betel-nut, 
by the convicts confined on the island. I call it 
Areca laxa foliolis binerviis, caudice incurvo, floribus 
triandris. 
The following account I have extracted from notes taken 
on the spot. 
Caudex saepius incurvus, nunquam ut in Catechu strictus, 
pedes 20- — SO altus, annulatus, inermis, apicem versus politus, 
viridisj tumidus. 
Frondes cum impari pinnatse. Pinnae lanceolatae, acutae, in- 
tegerriraae, plicis quatuor binerviae^ e medio stipitis laterum 
superiorum enatae^ aequidistantes. Stipes inermis. Rachis tri- 
angularis, latere inferiore convexo. 
Spatha nuda, monophylla, ex apice trunci annulati infra par- 
tem tumentem enata^, lanceolata, acuta, extra convexa, intra 
concava, marginata, integerrimaj decidua, interius dehiscens. 
Spadix decompositus, interne planus, nudus ; externe convexus, 
ramosus. Rami angulati, ramosi. Ramuli hinc laeves, inde den- 
ticulati. 
Masculini flores plurimi, minuti, sessiles, bini singulis ramu- 
lorum denticulis insidentes. Calyx triphyllus, rigidus, foliolis 
lanceolatis, acutis, conniventibus. Filamenta vix uUa. Antherae 
tres oblongae. Pistilli rudimentum nullum. 
Foemininae flores paucae, solitariae, ad basin ramulorum ra- 
mis adnatae, masculinis centies majores. Calyx triphyllus, con- 
volutus foliolis ovatis, concavis. Petala tria viridia, ovata, acu- 
minata, circa germen arete convoluta, calyce longiora, ovata, con- 
cava. Germen obsolete trigonum, ovatum, acuminatum. Sty- 
lus nuUus. Stigma acutum. 
Pericarpium non vidi. 
In the woods of Chatigang and Rangpur I found an- 
other Palm very nearly allied to this of Rumphius, and 
