302 CONVOLVULACER. XXIX. EvorvuLvus. 
Calyx hairy; segments lanceolate, acuminated. Corolla pale 
blue. Ev. virgatus, Willd. rel. is probably the same. 
Very narrom-leaved Evolvulus. Pl. procumbent. 
18 E. NurTALLIA'Nus (Roem. et Schultes, syst. 6. p. 198.) 
erect ; leaves linear-oblong, clothed with silky tomentum or 
hairs on both surfaces; peduncles short, l-flowered. 2. F. 
Native on the banks of the Missouri, and the high hills of Red 
River, near Kiamesha ; also in Florida, and about the banks of 
the Platte; and of Mexico. E. argénteus, Pursh, fl. 1. p. 
187. Nutt. gen. amer. 1. p. 174. but not of R. Br. Flowers 
purple, coming out about the middle of the stem. Sepals partly 
linear, and acuminated. 
Nuttall’s Evolvulus. Fl. 
erect. 
19 E. ratiròLIus (Ker. bot. reg. 401.) suffruticose, villous, 
erect at bottom ; branches diffuse ; leaves nearly sessile, ob- 
long-cordate, acuminated; fascicles of flowers nearly sessile, 
generally 3-flowered ; sepals linear-lanceolate, pilosely ciliated. 
May, June. Clit. 1821. PI. 
X. S. Native of Brazil. Corollas white, rotate. Styles 2, 
bipartite. 
Broad-leaved Evolvulus. Fl. June, July. Clt. 1819. Pl. 
diffuse. 
20 E. carrra‘tus (Nees et Mart, in act. bonn. 11. p. 80.) 
erect, hairy ; leaves sessile, lanceolate; flowers capitate, termi- 
nal. ©.S. Native of Brazil, about Barra da Varada, in fields. 
Plant hoary. Leaves sessile, hoary beneath, 14 inch long. 
Flowers in small villous heads, involucrated by 5-6 ovate-elliptic 
bracteas. Calycine segments unequal, villous. Corolla red- 
dish, somewhat funnel-shaped, twice longer than the calyx; 
limb large, 5-angled, plicate, villous outside. 
Capitate-flowered Evolvulus. Pl, 1 foot. 
21 E. cromera‘rus (Nees et Mart. in act. bonn. 11. p. 81.) 
procumbent, villous ; leaves oblong, attenuated at the base; 
heads of flowers axillary and terminal, leafy. ^ 5.S. Native 
of Brazil, about Tamburil and Valos, among bushes. Leaves 
6-9 lines long, on short petioles: lower ones obtuse: superior 
ones acutish. Heads of flowers sessile, mixed with oblong-lan- 
ceolate or lanceolate, villous bracteas. Calycine segments lanceo- 
Jate, acuminated. Corolla somewhat funnel-shaped, blue ; limb 
5-lobed, dilated. 
Glomerate-flowered Evolvulus. Shrub procumbent. 
+ Doubtful species. 
22 E. Ansu'scuLUs (Poir. suppl. 3. p. 459.) plant hispid ; 
leaves small, almost sessile, ovate-lanceolate ; flowers lateral and 
terminal, on short peduncles; stem much branched, filiform. 
h.S. Native of St. Domingo. Leaves hairy. Calyx hardly 
pilose; segments acute. Corolla white, twice longer tban the 
calyx. 
diitibesfoss Evolvulus. Shrub. 
23 E. AcarurcE Nsis (Willd. rel. ex Roem. et Schultes, syst. 
6. p. 199.) leaves lanceolate, villous, sessile ; stem branched at 
~the base; peduncles usually 2-flowered, length of leaves. ©. 
S. Native of Mexico, about Acapulco. 
Acapulco Evolvulus. Pl. procumbent. 
24 E. macrorny Lrus (Willd. rel. 1. c.) stem erect, branched ; 
leaves ovate-oblong, mucronate, tomentose; corymbs axillary. 
h.S. Native of South America. Humb. et Bonpl. 
Long-leaved Evolvulus. Shrub erect. 
Cult. The species of Evólvulus are pretty little plants, of 
easy culture. They all do well in a light sandy soil, or a mix- 
ture of sand and peat. They are all readily increased by seed, 
which ripen in abundance. 
XXX. CLADOSTYLES (from xAadoc, klados, a branch ; 
and crvXoc, stylos, a column; in reference to the branched 
XXX. CraposTYLEs. 
XXXI. Witsonra. XXXII. Dictonpra. 
style.) Humb. et Bonpl. pl. zequin. 1. p. 202. t. 57. H.B. 
et Kunth, nov. gen. amer. 3. p. 118. 
Lin. syst. Pentándria, Digynia. 
rotately-campanulate ; limb 5-cleft. Styles 2, bipartite ; stig- 
mas simple. Capsule 1-celled, 1-seeded, not dehiscent.—An 
erect herb; with alternate, entire leaves, and terminal loose 
panicles of small yellow flowers. 
1. C. panicuna‘ra (Humb. et Bonpl. l.c.) ©.S. Native 
of New Granada, near Turbaco. Stem branched, rather rough 
from adpressed, scattered hairs. Leaves sessile, lanceolate, 
acute, mucronate, narrowed at the base, beset with adpressed 
hairs on both surfaces, 1 inch long, and 3-4 lines broad. 
Flowers on long pedicels. 
Panicled-flowered Cladostyles. 
Cult. 
Calyx 5-parted. Corolla 
Pl. 2 feet. 
For culture and propagation see Evólvulus, above. 
XXXI. WILSO'NIA (named in memory of John Wilson, 
author of a synopsis of British plants in Ray's method.) 
R. Br. prod. p. 490. Choisy, in mem. soc. phys. gen. 6. 
. 496. 
j Lin. syst. Pentándria, Monogynia. Calyx urceolate, penta- 
gonal, 5-toothed. Corolla funnel-shaped, imbricate in eestiva- 
tion. Style bifid; stigmas capitate. Ovarium small, 2-seeded. 
—An humble, prostrate, much branched, downy shrub. Leaves 
imbricated in 2 rows, small, thickish, sessile. Flowers axillary, 
sessile, solitary, bractless. 
1 W.nu Minis (R. Br, l. c.) .h. G. Native of New Hol- 
land, on the south coast. 
Dwarf Wilsonia. Shrub prostrate. 
Cult. This is a singular and beautiful prostrate shrub, worth 
cultivating in every collection. A mixture of sand, loam, and 
peat, is the best soil for it; and it will be easily propagated by 
cuttings or by seeds. 
Tre III. DICHO'NDREJE (this tribe contains plants 
agreeing with Dichóndra in having distinct carpella.) Choisy, 
in mem. soc. phys. gen. 6. p. 497. Embryo cotyledonous. 
Carpella distinet. 
XXXII. DICHO’NDRA (from ic, dis, double ; and xovópoc, 
chondros, a grain; in reference to the double capsule.) Forst. 
gen. p. 39. t. 20. Lam. ill. t. 183. R. Br. prod. 491. Juss. gen. 
129. ed. Usteri, p. 144. H. B. et Kunth, nov. gen. 3. p. 119. 
—Sibthorpia spec. Lin.—Steripha, Geert. fruct. 2. p. 81. t. 94. 
—Demidofia, Gmel, veg. 458.—Anónymos, Walt. fl. car. 1. 
p. 110. 
Lin. syst. Pentándria, Digynia. Calyx 5-parted. Corolla 
subrotate or campanulate; limb flat, 5-parted. Ovaria 2; 
2-seeded. Styles 2, basilar; stigmas capitate or thick. Cap- 
sules 2, utricular, 1-seeded.—Humble, creeping, downy, non- 
lactescent herbs. Leaves cordate or reniform, entire, petiolate. 
Peduncles axillary, 1-flowered, without bracteas. 
1 D. rz'pens (Forst. gen. p. 39. t. 20.) leaves reniform or 
roundish-cordate, glabrous above and downy beneath; calyx 
exceeding the corolla a little. ? 2t. F. Native of America, New 
Holland, Van Diemen's Land; and of the East Indies, on 
Mount Taong-Dong, Ava, &c. Lam. ill t. 183. Ruiz. et 
Pav. fl. per. 3. p. 22. Sibthórpia evolvulàcea, Lin. suppl. P- 
288. Steripha renifórmis, Gzertn, fruct. 2. p.81. t. 94. Leaves 
sometimes retuse or emarginate, ex R. Br. 
Creeping Dichondra. Fl. July, Aug. Clt. 1803. Pl. cr. 
2 D. rorunpiro11a (Link. enum. 1. p. 249.) stems procumbent, 
hairy ; leaves on long petioles, reniform, emarginate, repandly 
crenated, of the same colour on both surfaces, hairy; calyxes 
ciliated, hairy. 4%. F. Native of Persia. 
Round-leaved Dichondra. 
trailing. 
3 D. CanoriNIA'NA (Michx. fl. bor. amer. 1. p. 186.) leaves 
Fl June, Aug. Clt.1816. Pl 
