412 A FLORA OF MANILA 
9. LEUCAS R. Brown 
Glabrous or pubescent, annual or perennial, simple or branched, erect or 
ascending herbs. Leaves narrow. Whorls axillary, usually distant. Cal- 
yx 10-nerved, the mouth oblique, equally or unequally 6- to 10-toothed. 
Corolla-tube included, annulate or not within, the upper lip short, erect, 
concave, villous, the lower spreading 3-fid, the middle lobe very large. 
Stamens 4, ascending; anthers conniving, cells divaricate, at length con- 
fluent. Style subulate. Nutlets ovoid, triquetrous, obtuse. (Greek “white,” 
in reference to the white-pubescent leaves of some species.) 
Species about 50 Africa, Asia, and Malaya, about 5 in the Philippines. 
Leaves linear to linear-lanceolate......................::.-se:-seeeseee 1. L. lavendulifolia 
fT hy | eal SE an aes rae NN Se eI see Sipseoes 2. L. javanica 
1. L. LAVENDULIFOLIA Smith (LZ. linifolia Spr.). 
An annual, erect, branched herb 40 to 80 em high, more or less pubescent 
with short hairs. Leaves linear to linear-lanceolate, 5 to 9 cm long, 8 
to 13 mm wide, acuminate, base narrowed, somewhat toothed; petioles none 
or short. Whorls axillary and terminal, many-flowered, the bracts few, 
short. Calyx about 1 cm long, green, very oblique, sharply toothed. Corolla 
white, 1.5 cm long, the central lobe of the lower lip obovate, truncate, 
8 mm wide. 
In open dry grass lands, waste places, etc., fl. all the year; throughout 
the Philippines, but certainly not a native species. India to Mauritius 
and Malaya. 
2. L. JAVANICA Benth. 
An erect or ascending, branched, pubescent herb 20 to 50 cm high. 
Leaves ovate, 2 to 6 cm long, up to 4 cm in width, obtuse, base sub- 
truncate or rounded, margins coarsely crenate. Flowers axillary, crowded, 
10 to 50 in each verticil, the bracts linear-setaceous. Calyx green, pubes- 
cent, 8 to 9 mm long, striate, with 10, slender, subequal, linear-subulate 
teeth. Corolla white, 11 to 12 mm long, the upper lobe ciliate, the lower 
3-lobed, glabrous. 
In thickets and open places opposite Fort McKinley, fl. Sept.Jan.; 
widely distributed in the Philippines, but probably not a native plant. 
Java. 
10. LEONURUS Linnaeus 
Erect, branched, leafy herbs with lobed leaves. Flowers in axillary, 
densely flowered, scattered whorls, or the upper ones closer, the bracts 
subulate. Calyx 5-nerved, turbinate, the teeth 5, spreading, spine-like. 
Corolla-tube naked within, the upper lip entire, erect, the lower 3-fid, the 
middle lobe obcordate. Stamens 4. Nutlets 8-angled, truncate, smooth. 
(From the Greek “lion” and “tail.”’) 
Species 10 in Europe, Asia, and America, a single introduced one in 
the Philipipnes. 
1. L. siBiricus L. 
A rather coarse, erect, branched, usually somewhat pubescent, annual 
herb 60 to 120 em high. Leaves 5 to 10 cm long, pinnately or palmately 
3- to many-parted, the lobes narrow, often incised, or the upper leaves 
