556 CLXVI. AROIDEEX. (J. D. Hooker.) [ Pothos. 
Throughout Inpra and CEYLON, in marshes, wild or cult., ascending the Himalaya 
to 6000 ft. in Sikkim. DISTRIB. north, temp. and warm regions. dunce 
Rootstock very aromatic. Leaves 3-6 ft. by 3-13 in., margins waved, P slight! 
LA in. broad. Spathe 6-30 in. long. Spadiz 2-4 in. i-i in. diam., slightly 
curved. Sepals about equalling the ovary.—Sweet Flag. 
2. A. gramineus, Soland. in Ait. Hort. Kew, i. 474; midrib own 
Prodr. 580; Engler Arac. ii. 218. A Calamus, Benth. Fl. Hongk. g Lat in 
terrestris, Spreng. Syst. ii. 118; Schott l. c. 579. A. Tatarinovn, à am 
Gstr. Bot. Zeitschr. (1859) 101. A. Calamus var. terrestris, Engler aa a 
SIKKIM HIMALAYA, alt. 6000 ft. J.D.H. Kuasa HILLS, alt. 4-5000 ft., Grën, 
&c.— DISTRIB. China, Japan. : shorter 
Much more variable in size than A. Calamus, from 6 in. to 3 ft., with a 
spathe and more slender spadix. 
Order CLXVII. LEMNACEJE. 
Minute or small annual floating green scale-like plants, e AT 
with eapilary roots, propagated by budding or by hybernating 
rarely by seed. Flowers 1-3, naked, or in a spathe; perianth 0. truncate 
1-2, anthers 1- or 2-celled. Ovary 1-celled ; style short; stigma ei ww 
or funnel-shaped ; ovules 1-7. Utricle bottle-shaped. Seeds 1- or mo 
testa coriaceous; albumen 0, or fleshy; embryo axile, cy lindric.— niries. 
2, or according to various authors 3or 4. Species about 20, in all cou 
1. LEMNA, Linn. 
: . : ts. 
Fronds with one or more roots, bearing the flowers in marginal clef 
Filaments slender ; anthers 2-celled. Ovules 1-7.— Species 17, natives of 
countries. 
L. obcordata, Ham. in Wall. Cat. 5201, is a species of Riccia. 
ical 
1, L. minor, Linn. Sp. Pl. 976; root solitary, frond sy nn 
obovoid or oblong nearly flat on both surfaces, ovule solitary: d t. 9, 
Enum. iii. 4. Reichb. Ic. Fl. Germ. vii. t. 14. Hegelm. Lemnx, © 
10; Boiss. Fl. Orient. v.29; Kurz in Journ. Linn. Soc. ix. 266. 
c Throughout Inpa? Wesrexn Tuer, to 9500 ft, TI homson.— 
osmopolitan. bove, 
Frond 3-4 in. long; young sessile on the old, but soon detached, green ptose. 
epidermal cells with flexuous walls. Root-sheath not appendaged, tol hemi- 
Spathe 2-lipped. Stamens 2 (each a male fl) Style long. Seed o" y 
anatropal, albuminous.—Kurz (Journ. Linn, Soc. xi. 266) thinks that been mis- 
does not occur in India proper. If this be so, L. paucicostata has bk 
taken for it, a point I must leave it for local botanists to clear up. 
the Caucasus and W. Tibet as the only Asiatic habitats. 
. , fronå 
2. L. paucicostata, Hegel». Lemnæ, 139, t. 8; root bé a 
asymmetrical obovate or obovate-oblong nearly flat on 59 ul. ii. d 
ovule solitary. Boiss. Fl. Orient. v. 80. L. minor, Griff. Notu 
Hegelm. in Seem. Journ. Bot. (1865), 112; Thw. Enum. 331. 
In various parts of INDIA and CEYLON; ascending the Khasia Hills 
DISTRIB. Cosmopolitan tropical. root-sheatis 
Distinguished from Z. minor by the asymmetric fronds, appendaged 
acute root-cap, and erect orthotropous seed. :eular 0 
e 
3. L. gibba, Linn. Sp. Pl. 970; root solitary, frond orbi 
DI8TBIP- 
to 6000 f7 
