BYTTNERIACEX. XVI. Wattuerta. 
of South America between Bordones and Cumana. Resembles 
W. Americana. Perhaps W. angustifolia, Lin. spec. 941. ex- 
clusive of the synonymes? Flowers yellow. 
Narrow-leaved Waltheria. Shrub 1 to 2 feet. 
6 W. corcuoriro't1a (Pers. ench. 2. p. 216.) leaves oblong- 
elliptic, tomentose on both surfaces; heads of flowers axillary, 
compact, on long peduncles ; calyx very villous; corolla smooth. 
k. S. Native of Rio Janeiro in Brazil. W. elliptica, St. Hil. 
fi. bras. 1. p. 152. Flowers yellow. 
Corchorus-leaved Waltheria. Shrub 2 feet? 
7 W. cra'sra (Poir. dict. 7. p. 325.) leaves ovate-lanceolate, 
mucronately serrated, and are as well as the stem very smooth ; 
heads of flowers ranged alternately on an axillary stalk ; calyxes 
ciliated. k.S. Native of Guadaloupe. W. le'vis, Schrank. 
pl. monac. t. 55. Link. enum. 2. p.179. Petals yellow, linear. 
Smooth Waltheria. Fl. July. Clt. 1823. Shrub 3 feet. 
8 W. corpa'ta (Smith in Rees’ cyclop. vol. 37.) leaves 
smooth, cordate, broad-ovate, even, acutely and unequally tooth- 
ed; heads of flowers solitary, axillary, on stiff peduncles. h. 
S. Native of the West Indies. Flowers yellow. 
Heart-leaved Waltheria. Shrub 8 feet. 
9 W., cinerascens (St. Hil. fl. bras. 1. p. 152.) stem shrubby, 
naked; leaves somewhat imbricated, somewhat ovate-orbicular, 
very obtuse, cordate at the base, coarsely-serrated, tomentose 
on both surfaces, cinereous ; heads of flowers terminal; calyx 
villous ; tube of stamens 5-cleft. h. S. Native of Brazil in 
the province of Minas Novas. Flowers yellow. 
Cinereous Waltheria. Shrub 4 feet. 
10 W. marrrma (St. Hil. fl. bras. 1. p. 153.) stem suffru- 
tescent, branched ; leaves rather imbricate, ovate, obtuse, deeply- 
serrated ; pilose on both surfaces, and with fine glandular tuber- 
cles; heads of flowers terminal ; calyx acuminated, pilose; tube 
of stamens nearly entire. h.S. Native of Brazil near Meia- 
hype, not far from Benevente. Flowers yellow. 
Sea-side Waltheria. Fl. Sept. Shrub 14 foot. 
11 W. rana‘ra (St. Hil. fl. bras. 1. p. 154.) stem suffruticose, 
nearly simple ; leaves ovate, acutish, plaited, lower and middle 
ones villous above, but villously-tomentose beneath, uppermost 
ones woolly, hoary-glaucous; heads of flowers terminal, rarely 
as if they were axillary, covered with woolly tomentum ; tube 
of stamens entire. h.S. Native of Brazil in the province of 
Minas Geraes. Flowers yellow. 
Woolly Waltheria. Fl. Oct. Shrub 1 foot. 
12 W. topua’ntuus (Forst. prod. no. 252.) leaves roundish, 
cordate, serrated, stalked, clothed with silky down; heads of 
flowers stalked, with imbricate bracteas. h. S. Native of 
the Marquis Islands in the South Seas. Lophanthus tomentosus, 
Forst. car. gen. 14. Flowers probably yellow. 
Crest-flowered Waltheria. Shrub 3 feet ? 
13 W. ertoca’rpa (D. C. prod. 1. p. 493.) leaves oval, plait- 
ed, toothed, tomentose; stipulas bristly-ciliated, permanent ; 
heads of flowers on short peduncles ; branches, petioles, and 
peduncles clothed with down. h. S. Native of Brazil. Flowers 
yellow. 
Hairy-fruited Waltheria. Shrub. 
14 W. ovara (Cav. diss. 6. p. 317. t. 171. f. 2.) leaves 
roundish-ovate, unequally toothed, tomentose; heads of flowers 
sessile, leafy. h. S. Native of Peru. Flowers yellow. 
Stipulas linear, deciduous. 
Ovate-leaved Waltheria. Shrub 4 feet. 
15 W. exxr’prica (Cav. diss. 6. p. 316. t. 171. f. 2.) leaves 
oblong, obtuse, toothed, tomentose; heads of flowers axillary, 
compact, glomerate ; calyx very villous; corolla smooth. R.S. 
Native of the East Indies. Flowers yellow. Stipulas lanceo- 
late, deciduous. 
Elliptical-leaved Waltheria. Fl. July. Clt. 1812. Shrub 3 ft. 
531 
16 W. Duranpi'nna (St. Hil. fl. bras. 1. p. 153. pl. usu. 
bras. no. 34.) stem suffruticose, ascending; leaves ovate or 
ovate-orbicular, obtuse, cordate at the base, lower ones pilose, 
upper ones tomentose and glaucous; heads of flowers terminal, 
and few axillary ; calyx pubescent; petals bearded above the 
claw ; tube of stamens entire. h.S. Native of Brazil on the 
banks of the river Uruguay, where it is called Durandinha. 
The inhabitants use it with success in diseases of the chest, and 
in decoction as an antisiphilitic, at least to allay the inflammation 
commonly attending that disease. It is also used to cure wounds. 
Flowers yellow. 
Durandinha Waltheria. Fl. Dec. Feb. Shrub 14 foot. 
17 W. cra‘ciris (St. Hil. fl. bras. 1. p. 154.) stem simple, 
suffruticose at the base; leaves ovate, or ovate-elliptic, obtuse, 
plaited, lower ones pilose, upper ones tomentose and canescent ; 
heads of flowers terminal, few, axillary ; tube of stamens nearly 
entire. k.S. Native of Brazil. Flowers yellow. 
Slender Waltheria. Fl. Oct. Shrub 4 to 14 foot. 
18 W. erasriv’scuta (St. Hil. fl. bras. 1. p. 153.) stem suf- 
fruticose at the base, nearly simple ; leaves elliptic or roundish, 
obtuse, smoothish; heads of flowers terminal and very few, 
axillary ; calyx villous; tube of stamens 5-cleft. h.S. Na- 
tive of Brazil. Flowers yellow. 
Smoothish Waltheria. Fl. April. Shrub 4 foot. 
19 W. commu'nis (St. Hil. fl. bras. 1. p. 155.) stem shrubby 
at the base, nearly simple, hairy ; leaves ovate-oblong or rarely 
ovate, obtuse, somewhat cordate at the base; pilose on both 
surfaces, ciliated; heads of flowers hairy-tomentose, terminal ; 
tube of stamens very short, 5-cleft. h.S. Native of Brazil 
in the province of Minas Geraes. Flowers yellow. 
Common Waltheria. Shrub 4 foot. 
20 W. microruy’LLA (Cav. diss. 6. p. 317. t. 170. f. 2.) leaves 
oblong, obtuse, plaited, serrulated, hoary, tomentose ; heads of 
flowers sessile. h. S. Native of the East Indies.—Pluk. 
alm. t. 150. f. 5. The whole plant is covered with fine tomen- 
tum. Leaves small. Flowers yellow. 
Small-leaved Waltheria. Fl. June, Jul. Clt. 1824. Sh. 4 ft. 
21 W. tonerroiia (D. C. prod. 1. p. 493.) leaves oblong, 
acutish, toothed, pubescent beneath ; heads of flowers sessile, and 
disposed on the branches as if they were in interrupted spikes. 
h.S. Native of the Caribbee Islands. Flowers yellow. 
Long-leaved Waltheria. Shrub 4 feet. 
22 W. a'srrorus (Spreng. syst. 3. p. 31.) leaves ovate, nearly 
sessile, deeply toothed, obtuse, rough from stellate down ; heads 
of flowers corymbose, terminal. h. S. Native of Brazil. 
A’stropus tomentdsus, Spreng. Neu. endt. 
Starry Waltheria. Shrub 2 to 4 feet. 
Cult. This isa genus of unimportant shrubs, not worth cul- 
tivating except in general collections. The species will thrive 
well in a rich loamy soil, or a mixture of loam and peat, and 
cuttings will root readily in sand, under a hand-glass, in heat. 
XVII. ALTHERIA. 
XVII. ALTHE'RIA (a name abridged from Walthéria). 
Pet. Th. nov. gen. mad. no. 64. D. C. prod. 1. p. 493. 
Lin. syst. Monadélphia, Pentándria. Calyx 5-cleft, 
girded by a 3-leaved involucel, Petals 5. Stamens 5, joined 
into a tube ; anthers bursting on the outside. Ovary 5-sided. 
Styles 5, joined. Carpels 5, joined, l-seeded. Seeds fixed to 
the central placenta. 
1 A. Mapaeascarir’nsts (D. C. prod. 1. p. 493.). h. S. 
Native of Madagascar. Visénia Madagascariénsis, Spreng. An 
erect, hairy herb, with cordate serrated leaves, and small, axil- 
lary, yellow flowers, which are disposed in bundles. 
Madagascar Altheria. Shrub 2 feet. 
Cult. This plant will thrive well in a mixture of loam, peat, 
3¥ 2 
