80 GKKAXIUM FAMILY. 



1. Lraves peltate and fleshy, the 5 lobes entire : stuns 



P. peltatum, Ivv-i.i. AVI.H I', (imcmlly smooth, tin- leaf tixcd 

 the niiddk', with or without a darkish /< ACTS pink or varying to white. 



2. I.t-iirix round and crenate, very n!:si-nr< '// many-lobed and >////< <i i/ufi nurrnuf 



xmiix : jn/n/K nil of (*-ni'l< t, ]>inl,', <>r run/i'n/ In ir/n'ti), tin' hrn 



upper a little narrower tlmn /In- ntlura: stems erect, shrubby and succulent. 



/'',. two species greatly mi.ru/. 



P. ZOnale, HOKSE-SHOK 1'. So called t'roin t lie dark horse-shoe mark or 

 zone, which however is not always present ; sinoothi-h ; petal* narrowish. 



P. inquinans, STAINIM. or SCAIM.ET 1'. In the uiiniixi'd stale i> -oft- 

 ilowny and clammy, the leaves without the /.one ; petals broadly obovate, origi- 



nally intense .-earlet. 



3. Leaves rounded, moderately ifut nil luiml : branches scarcely succulent: pet- 



iiln never scarlet, the tin* n/i/n r more or A.s-\ Im-tj, i limn lli<> three lower. 



* I^'iin-s sweet-scented, r/'/n-ti/ < soft-downy: jlir< rx xiim/l : stems or branches 



herbaceous or half herbaceous, .*./</<!////-/ m- straggling. 



P. capitatum, ROSK-SCEXTED P. Softly hairy, with the rose-scented 

 leaves moderately lobed, the loin's short and broad; peduncle bearing many 

 sessile' flowers in a head ; petals rose-purple, barclv .', ' loiiir. 



P. toment6sum, PEPPERMINT P. I)ensel\ soft-hairy: branches long 

 and tliiekish ; leaves rather large, round-heart-shaped and with 5-7 open lobes, 

 velvety-hairy both sides; flowers on lon^- pedicels in panieled umbels, insi-nili- 

 carit ; petals white, the .'5 lower a little longer than the calyx. 



P. odoratissimum, NI;TME<;-SCEXTEI> 1*. Branches slender and strag- 



gling, from a very short scaly stem or ha>e ; leaves rounded and crenate, soft- 

 yelvety, small; flowers on short pedicels, very small; petals white, scarcely 

 exceeding the calyx. 



* * 1. 1 tin:* unt sweet-scentsd : Jlninrs l<tri/i\ /n'nL-, /n/i-/>/i . n-/,/'/,, ^v., tf/c tim 



II/I/IIT /H'talx luiii/i r unit Li-n,i<li r limn tin tlini' lurirnnd streaked or spotted : 

 shrubby <m<l im-t. (All much mi. ml.) 



P. CUCUllatum, COWLED P. Soft-hairy, the rounded kidney-shaped leaves 

 cupped, soft-downy. 



P. COl'datum, HEART-I.KAVKD P. Like the last or less hairy, with flat 

 o\ ate-heart-shaped lea\ <>. 



P. angulbsum, MAPLE-LEAVED P. Harsher-hairy; the leaves rii^id, in- 

 clined to be lobed, truncate or even wed^e-shaped at the base (scarcely ever 

 heart-shaped), sharply toothed. 



4. /.' avt .; decidedly lobed r rut, in some s/i-i< * compound <' decompound, 



* Smtit'tli mill /ni/r /ir ijltiu, v.s, i-niini/'il, jHi/nnili'li/ 5-7-r/r/?. 



P. grandiflbrum, GREAT-I-I.O\VKI:ED P. Shrubby; peduncles bearinir 

 about .'1 lar-e tlo\\ers, with white petals l\> Ion-, the t\\o upper lar-cr and ele- 

 -.uiily veined or \ arie^ated with pink or rose-color. 



* * Sill.-i/-l)f>iiri/, i>iiiiinti'/i/ veined and somewhat />i>ni>iti/i<L 



P. tricolor, THREE-COLORED 1'. Lou. rather shrubby ; the long-petioled 

 small le:ive> lane, '-oblong ; peduncles bearinu '2 or :t show v flowers ; the three 

 louep petals white, the two upper crimson, with a dark spot at their base, and 

 rather smaller, ' long : not common. 



* # # Soft-hoary or velvety, palmatelyS-parted, small: no obvious stipuks. 

 P. exstipulatuin, Pi:\\v-K<>Y \t. I'. Low, rather shrubby ; leaves with 



the sweet .-cent of IVliny-Koval or I>eru'aniot, .',' wide, the lobes wedge-shaped 

 and cut-toothed ; flowers small and insignificant, white. 



* * * * f/niri/, rum/l/is/i, tir ilmi-ni/ : /ninx mori- nr ANV ninnatifid Or />inati>/y 



coiii/iiiiini/ IT tin- iiiniii IO'HX iir t/irtsiniis jiiiiii'itifiil , Im/sdi/iir ur atronif- 

 ilnl : sti> 



P. quercifolium, OAK-LI. \vi i> I'. Shrubby, hairy and glandular; 

 leaven deeply Einnate-piooatifid, with wavy toothed blunt "lobes (the lowest 



