Typhonium.'] Aracece. 353 



Interspace between the male and fern. infl. naked. 



Neuters long, filiform, tortuous . . . . i. T. trilobatum. 



Neuters short, subulate, decurved . . .2. T. Roxburghii. 

 Interspace between the male and fern. infl. covered 



with neuters 3- T. cuspidatum. 



1. T. trilobatum, Schott in Wien. Zeitschr. 72 (1829). Panu- 

 ala, .^. 



Herm. Parad. Bot. 78 ; Mus. 33. Burm. Thes. 89. Fl. Zeyl. n. 326. 

 AriiDi h-ilobatiim, L. Sp. PI 965; Moon, Cat. 64; Thw. Enum. 334. 

 C. P. 2896. 



Fl. B. Ind. vi. 509. Herm. Par. Bat. t. ']Z. Wight, Ic. t. 801 {Arum 

 orixense). 



Tuber subglobose, about i in. diam.; 1. long-petioled, 

 hastately 3-lobed with a truncate or cordate or 2-lobed base, 

 the lobes broad or narrow, sinus sometimes very deep and 

 narrow, or 3-partite, with segments 5-7 in. long, the central 

 broadly ovate, acuminate, lateral smaller, dolabriform; petiole 

 6-12 in.; spathe 3-8 in., ped. 1-4 in., tube oblong or pyriform, 

 much shorter than the broadly ovate, caudate-acuminate, 

 expanded limb, which is dull red-purple within, paler ex- 

 ternally, with undefined green stripes ; spadix 2-4 in., sessile, 

 erect, male infl. cylindric, fem. very short, surmounted by a 

 dense mass of filiform tortuous neuters, \ in. long, interspace 

 between the neuters and male infl. naked; appendage shortly 

 stipitate, slender, striate, acute or obtuse, red, base truncate; 

 anth. minute; ov. crowded in a hemispheric mass, stigma 

 pulvinate. 



Damp places in moist low country; common. Fl. July, August. 



Also in India, Burma, Malaya. 



Often a troublesome weed in cultivated ground. 



2. T. Roxburg-hii, Schott, Aroid. i. 12, t. 17 (1855). Polon- 

 ala, S. 



Arum divaricatu)ii. Moon, Cat. 64 (.'' L.). Aruju Roxburghii, Thw. 

 Enum. 432. C. P. 3764. 



Fl. B. Ind. vi. 510. Wight, Ic. t. 803 {A. trilobatum). Bot. Mag. 

 t. 339 {A. trilobatum; from Ceylon specimens). 



Tuber i in. or more diam.; 1. 2-5 in., hastate or deltoid- 

 cordate, as broad as long or broader, or 3-lobed with rounded 

 basal lobes and open sinus, or 3-partite with dimidiate-ovate 

 or oblong side-lobes and ovate-acuminate mid-lobe; petiole as 

 long as the blade or longer ; spathe 3-8 in., tube \-\ in., 

 ovoid or ellipsoid, limb deflexed, broadly ovate-lanceolate, 

 explanate, narrowed into a long twisted tip that rests on the 

 ground, smooth, dark vinous purple within, paler and more 

 dingy purple externally; spadix 5-7 in., sessile, erect, male 

 infl. exserted, \ in. long, cylindric, fem. very short, surmounted 

 by neuters, interspace between the males and neuters slender, 

 PART IV. A A 



