Ipoma.] LXXXT. CONVOLVULACE.f:. ^^^ 



^ 



Series IT. Thsirhitides.— Leaves entire or Z^lohed. Ovanj usmlhj Z-celleiL 

 ^pals usuaUy long and narrow. Corolla of the Spcciosse. 



Caljx acuminate, above \ ia. long. 

 Leaves mostly 3-lobed. Flowers few on the peduncle. Calyx 



birs usually spreading •. . '. •- •- ■- • • ■- • • • ' ^' L hederacea. 

 I^veg mostly entire. Flowers usually several in a compact cyme. 



Hairs usually appressed . .-. / — H' '""^''t' 



% scarcely acuminate, under i iu. long. Leaves mostly entire . ^. l.ptirpurea. 



Serths III. CBXycx^^.-leaves entire or lobed at the base. ^^'^%^:f^f' 

 b^h large, obtuse (attaining | to 1 in. after flomerlng). Corolla large (1^^ ^ ^«. 



Glabrous or nearly so. Bracteoles small. Sepals very large. Co- 



rolla broadly campanulate, about 2 in. long. -.n r 7/ /^ 



*aves large, mostly peltate . .......•• . . 10- /■ F^^'^^''- 



waves cordate or hastate, acuminate. Petioles and peduncles 



oftea winged \\. I. alata. 



Pubescent. Bracteoles large, membranous, deciduous. Corolla jrp,^^^n,,.^ 



rampanulate, 11 in. long or rather more • • • 12. /. r«rp^/A«'«- 



^labroas or sparingly pubescent'. Bracteoles sraaU. Corolla about 



3 m. long, contracted into a tube at the base. jnnm/lora 



waves acuminate. Outer sepals rather larger than the others . 13. '• 'onffU ■ 

 ^aves very obtuse, almost reniform. Outer sepals rather smaller 



<W the others • • 14. /. ^o^^^^'*- 



^ Series IV. Specios^.-L.«.., .«^.>. ^..^.i ''r lohed at the lase^ ^^iflTlart 

 ^mnously Uelled. Sepals moderate or small (rarely attaining ^J^^i.^j for white. 

 l»^ to 3 in. long), often more or less luhdar at the base, usually pinh purple or wliue. 



^'""l prostrate or creeping and rooting at the lower uodes. Mari- 

 time plants. Seeds woolly-hairy. 

 i-<:"es rather thick, very obtuse or emarginate. Ovary more oi 



less 4.celled. ,- j Pes caw-<z. 



i-eaves broad, 2 to 3 in. long, the veins prominent • • • ' {'• j ,^. 



waves small or narrow, the veins scarcely prominent • • • ^"- ■ 

 "aves rather thin. Ovary 2-celIed. , , r revlans. 



I^wes acute or acuminate. Seeds woolly-hairy t^- j ^^^.Ctadata. 



Si j .^^. ^^tuse or acute. Seeds glabrous 



Q wimng {sometimes creeping iu I. denticiihtta) . 



T ^i^° ^''o^'e 3 in. long. , , 18 /. graminea. 



i^aves hnear-laneeolate, not cordate. Stems slender . . • -i^- !f 

 leaves broadly ovate-cordate. Stems woody at the base. ^^ ^ ^ehitina. 



^obescent or villous 20' /^ abrupta. 



Wabrous . . . ... . ..•.•.••• • ' * 



^wolla U to 2 in. lo.ig or scarcely more. Leaves cordate or 

 hastate. o J 



Peduncles usually mucli shorter Ihau the rather long pedicels, 

 i^epals obtuse or mncronate. Leaves mostly obtusely auricu- ^^ ^ ^i.nthuMa. 



o„, 22. I. gracilis. 



'Sepals acuminate. Leaves mostly hastate • • * ' ' 

 ^^duncles mostly longer than the siiort pedicels. Leaves cor- 



r ,f' 23 I- sejjiaria. 



^ofoUa above li in. long. Seeds glabrous ^, f Muelleri. 



'-oroOascaicely 1 Jin. long. Seeds villous ' 



Ovary 2 



^!idV- Campauulat^.-i..... er^Hre looked or _ ^f f'i/zf irSy car.J^'^'^ 

 Ce. rP'"'"'' moderate or small (rarelg exceeding 1 ui.J> usually 



