262 CONVOLVULACE#, 
Cayenne, Cuba, Brazil, banks of the Orinoco. Convélvulus 
riparius, H. B. et Kunth, nov. gen. 3. p. 109. Conv. Orino- 
cénsis, Willd. herb. ex. Roem. et Schultes, syst. 4. p. 303. 
Cissus-like Batatas. Pl. tw. 
13 B. CavawirrzEsn; glabrous; leaves quinate; leaflets 
ovate, entire, unequal; peduncles 1-3-flowered; corolla of a 
pale whitish red. 2t. C. S. Native country unknown. Ipomoe‘a 
Cavanillésii, Roem. et Schultes, syst. 4. p. 214.  Ipomce'a pen- 
taphylla, Cav. icon. 3. p. 29. t. 256. Pers. ench. 1. p. 184. 
Ip. Cavanillésii, Roem. et Schultes, syst. 4. p. 214. Convólvulus 
Cavanillésii, Spreng. syst. 1. p. 590. Stems filiform. Sepals 
ovate, coriaceous, the 2 outer ones rough from dots. Lobes of 
corolla obtuse, crenulated. 
Cavanilles’s Batatas. Fl. Aug. Sept. Clt. 1815. Pl. tw. 
14 B. rerna‘ta; glabrous; leaves ternate ; leaflets petio- 
lulate, ovate, repandly crenated ; peduncles axillary, 1-flowered ; 
corolla dirty white, with the rays cream coloured ; calyx clammy ; 
sepals obovate, obtuse, inflated. 27. ^. S. Native of Brazil. 
Ipomee'a ternàta, Jacq. hort. schoenbr. 1. p. 16. t. 37. Poir. 
suppl. 4. p. 632. Conv. ternàtus, Spreng. syst. l. p. 590. 
Root tuberous, large. Peduncles purplish. Lobes of corolla 
bearded. Stamens exserted. 
Ternate-leaved Batatas. Fl. July, Aug. Clt. 1824. Pl. tw. 
15 B. cravcrróLiA ; glabrous; leaves sagittate, truncate be- 
hind, on long petioles; peduncles 2-flowered, length of leaves ; 
sepals ovate, acute. X. ^. S. Native of Mexico, in corn 
fields. Ipomee‘a glaucifolia, Lin. spec. 229. Willd. spec. 1. p. 
884. Convólvulus glaucifolius, Spreng. syst. 1. p. 604.—Dill. 
elth. 103. t. 87. f. 101. Corolla small, purplish or flesh-co- 
loured ; with an inflated tube, and ovate, acute segments. Cap- 
sule 3-4-celled ; cells 1-seeded. 
Glaucous-leaved Batatas. Fl. May, July. Clt. 1732. Pl. tw. 
16 B. LourE'IRI; stems procumbent; leaves cordate, pal- 
mate, on long petioles ; corolla purple. %.^.S. Native of 
Cochinchina. Ipomoe'a tuberòsa, Lour. coch. p. 138.  Tubers 
oblong, edible, as in B. edùlis, to which they are much like in 
size, taste, and form. 
Loureiro’s Batatas. Pl. procumbent. 
Cult. The species of Batàtas are strong, free growing plants, 
of easy culture, only requiring plenty of room to spread. They 
are well adapted for trellis-work, or to run up pillars in stoves. 
They are all tuberous rooted plants ; and, therefore, require to 
be kept dry when in a dormant state. Light rich soil an- 
swers them best. Young cuttings strike root readily under a 
hand-glass, in heat. They are all very showy when in blossom. 
X. PHARBITIS (meaning unknown to us.) Choisy in mem. 
soc. phys. gen. 6. p. 438.—Convólvulus and Ipomoe'a species of 
authors.— Convolvuloldes, Moench. meth. 452. 
Lin. syst. —Pentándria Monogynia. Calyx of 5 sepals. 
Corolla campanulate, or campanulately funnel-shaped. Style 
one; stigma capitately granulate. Ovarium 3, rarely 4-celled ; 
cells 2-seeded.—The species of this genus are readily distin- 
guished from other convolvulaceous plants. They are mostly 
climbing American herbs, usually beset with retrograde hairs. 
§ 1. Leaves cordate, entire. 
1 P. nisprpa (Choisy in mem. soc. phys. 6. p. 438.) leaves 
cordate, acuminated, entire: auricles diverging ; peduncles 
usually exceeding the leaves, 3-5-flowered, somewhat umbel- 
late; sepals ovate-lanceolate, acute. ©. ^. H. Native of 
South America, Sandwich Islands, and probably cultivated in 
the East Indies. Convélvulus purpüreus, Lin. spec. p. 219. 
Ehrh. pict. t. 7. f. 2. Curt. bot. mag. t. 113. 1005. and 1682. 
IX. Batatas. 
X. PHARBITIS. 
H. B. et Kunth, nov. gen. amer. 3. p. 104. Ipomoea purpürea, 
Lam. ill. no. 2129. Ipomoe'a hispida, Zucc. cent. obs. no. 36. 
Ipomee'a Zuccágni, Roem. et Schultes, syst. 4. p. 230. Ipomoe'a 
glandulifera, Ruiz. et Pav. fl. per 2. p. 12. t. 121. f. a. Ipo- 
moe'a intermèdia, Schultes, obs. no. 236. p. 37. Ip. Schultésii, 
Schultes, syst. 4. p. 790. Conv. mutábilis, Sal. prod. 123. 
Convolvuloides leucospérma, and Conv. purpürea, Mcench. meth. 
p. 452. Conv. glandülifer, Spreng. syst. 1. p. 599. Ipomæ'a 
díscolor, Spreng. mss. ex Schultes, obs. Conv. eriocaülos ? 
Willd. mss. in Roem. et Schultes, syst. 4. p. 301.—Dill. elth. 
97. t. 82. f. 94. ibid. p. 100. t. 84. t. 97. Stem beset with re- 
trograde hairs. Pedicels usually drooping or twisted. Sepals 
hispid, particularly so at the base ; inner ones smoothish. Cap- 
sule glabrous, 3-celled. Seeds brown, roundish.—This species 
varies much in the colour of the flowers; white, purple, violet, 
and mixed with these colours. 
Hispid Pharbitis. Fl. June, Sept. Clt. 1629. PL tw. 
2 P. iNsuLA'nis (Choisy, l. c. p. 439.) leaves entire, cordately 
acuminated, clothed with greyish down; peduncles exceeding 
the petioles from 2 to many-flowered ; sepals cuneate-lanceo- 
late, very acute, downy. ©.%.H. Native of Marianne Island ; 
Sandwich Islands ; Norfolk Island ; New South Wales, at Endea- 
vour river. Convólvulus multiflórus, herb. britt. mus. Stem beset 
with retrograde soft hairs.  Petioles villous. Bracteas narrow, 
villous. Corolla tubularly campanulate, 2-3 inches long, purple. 
Var. 83 down on the plant longer, of a rusty, silky colour. 
Island Pharbitis. | Pl. tw. 
3 P. BARBÍGERA ; stem downy; leaves cordate, acuminated, 
entire, hairy on both surfaces ; hind lobes rounded: peduncles 
1-flowered, shorter than the petioles, bibracteate near the calyx; 
sepals acuminated, spreadingly reflexed at apex, and densely 
bearded at the base. @©.%™.H. Native of North America. 
Ipomce'a barbigera, Sweet. fl. gard. t. 86. Corolla campanu- 
lately funnel-shaped, 5-lobed, slightly crenulated; limb of a 
bright azure blue; tube pale, or nearly white. Stigma capi- 
tate, hardly lobed. Capsule smooth, 3-celled; cells 2-seeded. 
Seeds black, roughish, downy. 
Beard-bearing Pharbitis. Fl. July, Oct. Pl, tw. 
§ 2. Leaves 3-5-lobed. 
4 P. Nit (Choisy, l. c.) hairy; leaves cordate, 3-lobed : 
intermediate lobe dilated at the base, and not contracted ; 
peduncles 2-3-flowered, commonly exceeding the petioles ; 
sepals ovate-lanceolate, hispid at the base. ©. ^. H. Na- 
tive everywhere within the tropics, both in America, Africa, 
and Asia. Convélvulus Nil, Lin. spec. 219. Ipomee'a Nil, 
Roth. cat. bot. 1. p. 36. Ipomor'a ezerülea, Koen. mss. Roxb. 
fl. ind. 2. p. 91. Ker. bot. reg. 276. — Convólvulus hederàceus, 
Lin. spec. p. 219.  Ipomoe'a hepaticifolia, Hayne, herb. Conv. 
hederaceus, pilósus, and purpüreus, Herb. madr. Conv. Cala- 
dona, and Conv. Sucbédea, Ham. herb. Conv. hepaticifólius, 
Russ. herb.—There are several varieties of this species, particu- 
larly the following. Flowers blue. Gerarde says this plant is 
called by the Arabians Nil; of Serapio Hab al Nil; and in 
Syria, the inhabitants call it Hasmisen ; and the Italians Cam- 
pana azurea. Plant hairy. 
Var. B. Ipome?a cerule’scens (Roxb. fl. ind. edit. Wall. 2. 
p.90.) This differs from the species, in the leaves being never 
lobed, and in the plant being perennial. Flowers of a beautiful 
lively pale blue. 
Var. y. Conv. Cæléstis (Forst. prod. no. 77.) The leaves of 
this variety are described as entire, downy. (2.^. H. Native 
of the Island of Tarma, in the Pacific. 
Nil Pharbitis. Fl. July, Sept. Cit. 1597.. Pl. tw. 
