500 CLXVI. AROIDEE. (J. D. Hooker.) [Arisema. 
reticulated. Appendage as in A. Griffithii, of which Clarke (Journ. Linn. Soc. xn, 
386) considers it a trifling variety. The Bot. Mag. figures, however, uphold the 
characters which I never failed to observe in Sikkim. Hybrids, of course, may 
occur. The Western specimens have longer petioles and peduncles and paler greener 
spathes. All my specimens are l-leaved, but two are represented in the redu 
figure of the Bot. Mag. drawing. 
B. Limb of spathe lanceolate acuminate, or caudate.—Dicecious, except 
A. Prazeri. 
10. A. speciosum, Mart. in Flora (1831), 458 ; m Wall. Cat. 8923; 
leaf solitary, leaflets all petiolulate acuminate lateral dimidiate cor late 
median ovate, nerves broadly reticulate, limb of spathe ovate-lanceo s 
incarved caudate-acuminate, appendage cylindric or fusiform at the often 
inflated base, narrowed into a very long filiform tail, base not truncate or 
disciform. Blume Rumphai.101; Kunth Enum. ii. 18; Schott Melet. 1. 
17; Syn. 96; Prodr. 27; Clarke in Journ. Linn. Soc. xxiii. 390 ; Bot. Mag. 
t Gr Engler Arac. 539. Arum speciosum, Wall. Tent. Fl. Nep. 2% 
TEMPERATE HIMALAYA ; from Kumaon, to Sikkim, alt. 7-8000 ft., and Bhotan 
9-10,000 ft., Griffith. as. Petiolé 
Rootstock oblique, or shortly creeping and rooting; often 5 in. diam. 6-19 in 
very stout, green, smooth, often marbled with brown or purple; leaflets l ti lule 
edged with red or purple, median cuneate or rounded at the base; pe tri 
i-2 in. Peduncle much shorter than the petiole. Tube of spathe 2-4 in» " wish 
with purple; limb 2-6 in. long, banded white and purple. Spadiz pink or ye varies 
tail 12-18 in., dark purple ; base of appendage usually ovoid ; anther-cells 4-5 jt made 
ovoid, stigma sessile pulvinate.—Very variable in size and colouring. Schott ma 
three species of it, reduced by Engler to two varieties, both founded on my d 
they are A. eminens, Schott in (str. Bot. Zeitschr. (1875) 897; Syst. Ara Il. cc. 
simply a gigantic specimen with the spathe 8 in.long ; and A. mirabile, Schot ism, 
866 and 31, with an abnormally inflated base of the appendage. Wallich’s Art 
n. 8925 in fruit, from Tavoy, may be speciosum. 
ll. A. intermedium, Blume Rumph. i. 102; leaves 1 or 2, lé 
sessile lateral dimidiate-ovate or -cordate median elliptic base acute ` 
cuneate nerves broadly reticulate, limb of spathe lanceolate me, 
narrowed into a filiform cusp, appendage substipitate subcy aa 
narrowed from a dilated fusiform base into a very long fusiform A 
Kunth Enum. iii. 18; Schott Syn. Aroid. 27; Prodr. 28; Engler Ari 
540. A. Stracheyanum, Schott in (Estr. Bot. Zeitschr. (1857), 538; Pro d. 
iso, dd Ics and le. ined. Schott in Bonplan 
(1859) 26; Prodr. og ` ined. No. ll. A. dolosum, Ge 
TEMPERATE WESTERN H1MALAYA,, alt. 7-9000 ft., from Simla to Komae flets 
A smaller plant than 4. speciosum, with more membranous sessile Tea d 
the median of which is elliptic with a very acute base. From Wallichiant™ a 
differs in the elliptic median leaflet, The nervation at once distinguishes it "° 
A, costatum. A. dolosum and Stracheyanum in no way differ from intermedium. 
12. A. Wallichianum, Hook. f. leaf solitary, leaflets sessile all 
rhombic-orbicular, bases cuneate, margins undulate, lateral subequ® * ipte 
base, nerves broadly reticulate, limb of spathe oblong or lance, of 
caudate-acuminate, appendage shortly stipitate, base dilated trance d 
disciform narrowed into a very long filiform tail. A. costatum, 
Cat. 8922 non Mart. (not Arum costatum, Tent. Fl. Nep.). 
