Didymosperma.] CLXII. PALMEX. (Beccari E Hook. f.) 491 
Assam; Daphla hills, Booth. 
Stem 2 ft., about as thick as a duck’s quill. Leaves 8-18 in., rachis and petiole 
very slender ; leaflets 1-3} in. long and broad, white beneath. Spadiz fruiting, 8 in., 
sheathed below the middle with narrow long terete glabrous striate spathes; lateral 
branches (or spikes) 3 in., terminal 4 in. long. Fruit $ by X in. diam. rather curved. 
Seed 2. in, long, equally narrowed at both obtuse ends ; raphe very obscure; albumen 
equable.— A pparently a very distinct species, found by Mr. Booth, Mr. Nuttall’s 
collector in Assam. 
12. ARENGA, Labill. 
, Tallstout palms, flowering first from an upper leaf-axil, and succes- 
sively from lower ; trunk densely clothed above with fibrous remains of the 
leaf-sheaths. Leaves terminal, long, pinnatisect; leaflets long, linear, 
usually pramorse, unicostate, base 1-2-auricled. “Spathes many, clothing 
the peduncle of the spadix. MSpadices interfoliar, large, much branched, 
peduncle short decurved, branches slender pendulous; male and fem. 
owers usually solitary and in separate spadices, rarely 3-nate a fem. 
"tween 2 males. Male fl. symmetric; sepals orbicular, imbricate; petals 
oblong, valvate; stamens numerous, filaments short, anthers apiculate ; 
Pistillode 0. Fem. Ji. subglobose; sepals accrescent; petals triangular, 
Valvate ; staminodes many or 0; ovary subglobose, 3-celled, stigmas conic. 
Fruit obovoidly globose, 9-3-seeded ; stigmas terminal. Seeds compressed 
or plano-convex ; albumen equable; embryo dorsal.—Species about 10, trop. 
Asia, Malaya and Australia. 
l. A. saccharifera, Labill. in Mem. Inst. Fr. iv. 209; trunk tall 
Very stout, leaflets 4-fariously fascicled linear lobed and variously toothed 
towards the tip, base 1-2-auricled white beneath, male buds obtuse. Mart. 
Hist. Nat. Palm. 191, t. 108 and 161, f. 4; Mig. Fl. Ind. Bat. iii. 35; 
Kurz For, Fl. ii. Aa: Griff. in Cale. Journ, Nat. Hist. v. 472; Palms 
Brit. Ind, 164, t. 135 A. A. Griffithii, Seem. ep H. Wendl. in Kerchov. 
alm. 239, Saguerus Rumphii, Soch, Fi. Ind. iii. 626. S. saccharifer, 
Feat, Verh. Bat. Genoostsch. i. 350; Blume, Rumphia, ii. 128, t. 123-4. 
mutus saccharifer, Spreng. Syst. ii. 692. Borassus Gomutus, Lour. Fi. 
Cochinch, ii. 759. 
y Artnr Prav, Burma, and the MALAY PENINSULA,—DISTRIE. E. Asia and 
aya 
Trunk 20-40 ft Leaves very many, 20-28 ft.; leaflets up to 115 on each side, 
3-5 ft. ong, subsessile, linear, coriaceous, costa stout, scurfy beneath ; petiole seurfy- 
ale spadia 4-5 ft., simply branched, flowers oblong-clavate purple 1 in. long an 
em. jl. solitary, 1 in diam. Fruit 2-24 in. long, oblong-turbinate, base 
harrowed, top rounded or depressed. 
2. A. obtusifolia, Mart. Hist. Nat. Palm. 191, t. 147, 148, 161; 
prank tall very stout, ‘leaflets bifarious linear narrowed and truncate 
‘lobed or toothed at the tip white beneath, base 1- or ex-auricled, malo 
J Sete. Mig. Fl. Ind. Bat. iii. 36. A. Westerhoutii, Grif. in Cale. 
192; ol Hist. v. 474; Palms Brit, Ind. 166, t. 235 B, C, D; Mart. l.e. 
2; Mig. 1, e, 37, Saguerus Langkab, Blume Rumph. ii. 131, t. 96, 125. 
mutus obtusifolius, Blume mss. 
PENANG, Lewes. MALAY PENINSULA, at Naning, Westerhout. 
wan? nearly allied to A. saccharifera, distinguished by the arrangement of the 
ets, which according to Griffith are bifarious with deflexed tips, the upper alone 
