Potho$~\ CLXVI. AROIDEJ:. (J. D. Hooker.) 555 



2-3 in. Peduncle 1 in -> decurved or tortuous. Spathe l by in., tip obtuse 

 apioulate. Spadix 5 in. ; flowers solitary or clustered. 



15. P. remotiflorus, Hook. Ic. PI. t. 133 ; leaves 3-6 by f-2 in. 

 unequal-sided linear or oblong-lanceolate or oblanceolate caudate- 

 acuminate, base acute or obtuse, sheaths very slender divergent from the 

 branch, peduncles terminal and axillary, spathe linear-lanceolate apiculate, 

 spadix very slender zigzag, flowers solitary. Kunth Enum. iii. 65 ; Schott 

 Aroid. i. 25, t. 54; Prodr. 573; Thw. Enum. 337; Engler Arac. 92. 

 P. elliptica, Moon Gat. PL Gey 1. 10 (name only) ; Mia. FL Ind. Bat. iii. 

 182. 



CEYLON ; Walker j up to 4000 ft., Thwaites. 



Stem as thick as a sparrow-quill, much branched. Leaves coriaceous, tips fili- 

 form; nerves erecto-patent, arched; petiole i in., very slender, sometimes in a 

 straight line with the sheath, which is i-1^ in. long. Peduncle l-l<in., erect, 

 decurved, or slender. Spathe -2 in., striate, base rounded. Spadix l-2 in. 



C. Petiole very shorfc, base semi-amplexicaul (sheath 0). 



16. P. Thomsonianus, Schott Aroid. i.24, t. 51 ; Prodr. 571 ; leaves 

 4-6 by l-2 in. elliptic- or oblong-lanceolate caudate-acuminate, base 

 cuneate, peduncles lateral and terminal, spathe small oblong-lanceolate, 

 spadix subsessile cylindric dense-fld. 



The CABNATIC ; G. Thomson. 



branches as thick as a duck's quill. Leaves thinly coriaceous, rather unequal- 

 sided, drying yellowish ; petiole -$ in. Peduncle 1 in., decurved. Spathe % in. 

 Spadix f-1 in. Formed parts of a herbarium made by collectors in the Carnatic 

 employed by the late Gideon Thomson, Esq., of Madras, for his brother, the late 

 Director of the Calcutta Bot. Garden. 



INDETERMINABLE SPECIES. 



P. BIVABIUS, Wall. Cat, 4445, from Singapore, young leaves only. 

 P. OBLIQUUS, Wall. Cat, 4446; from Tavoy, Gomez. 



32. ACORUS, Linn. 



Aromatic marsh herbs, rootstock creeping. Leaves distichous, ensiform, 

 base equitant, nerves parallel. Peduncle leaf-lite. Spathe the ensiform 

 continuation of the peduncle. Spadix sessile, cylindric, dense-fld., flowering 

 upwards. Sepals 6, orbicular, concave, tips incurved. Stamens 6, fila- 

 ments linear flat ; anther reniform, cells confluent above, slits extrorse. 

 Ovary conical, 2-3-celled ; stigma minute ; ovules many, pendulous from 

 the top of each cell, orthotropous. Berries few-seeded. Heeds oblong, 

 micropyle often fimbriate, albumen fleshy, embryo axile. Species 2 north 

 temp, regions. 



1. A. Calamus, Linn. Sp. PL 324; leaves 3-6 ft. midrib stout 

 Eoxb. FL Ind. ii. 169; Don Prodr. 21; Wall. Cat. 196; Grah Cat 

 Bomb. PL 230 ; Dalz. & Gibs. Bomb. FL Suppl. 96 ; Thw. Enum. 337 

 Griff. Notul. iii. 157 ; Ic. PL Asiat. 1. 162. Engler Arac. 217. A. Griffithii 

 and nilaghirensis, Schott in CEstr. Bot. Zeitschr. (1858), 357, and (1859) 

 101 ; Prodr. 580, and 579. A. Belangeri, Schott in Ann. Mus. Lugd Bat 

 i. 284. A. Casia, Bertol. PL Nuov. Asiat. ii. (1865), S.Rheede Hort Mai 

 xi. t. 48. 



