80 GERANIUM FAMILY. 



1 . Leaves peltate and fleshy, the 5 lobes entire : stems trailing. 

 P. peltatum, IVY-LEAVED P. Generally smooth, the leaf fixed towards 

 the middle, with or without a darkish zone ; flowers pink or varying to white. 



2. Leaves round and crenate, very obscurely many-lobed and with a deep narrow 

 sinus: petals all of one color (scarlet, pink, or varying to white), the two 

 upper a little narrower than the others : stems erect, shrubby and succulent. 

 The two species yreatly mixed. 



P. zonale, HOUSE-SHOE P. So called from the dark horse-shoe mark or 

 zone, which however is not always present ; smoothish ; petals n'arrowish. 



P. inquinans, STAINING or SCARLET P. In the unmixed state is soft- 

 downy and clammy, the leaves without the zone ; petals broadly obovate, origi- 

 nally intense scarlet. 



3. Leaves rounded, moderately if at all lobed : branches scarcely succulent : pet~ 

 als never scarlet, the two upper more or less larger than the three lower. 



* Leaves sweet-scented, velvety or soft-downy : flowers small: stems or branches 



herbaceous or half herbaceous, spreading or straggling. 



P. capitatum, ROSE-SCENTED P. Softly hairy, with the rose-scented 

 leaves moderately lobed, the lobes short and broad ; peduncle bearing many 

 sessile flowers in a head ; petals rose-purple, barely ' long. 



P. tomentdsum, PEPPERMINT P. Densely soft-hairy; branches long 

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

 velvety -hairy both sides ; flowers on long pedicels in paniclcd umbels, insignifi- 

 cant ; petals white, the 3 lower a little longer than the calyx. 



P. odoratissimum, NUTMEG-SCENTED P. Branches slender and strag- 

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

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

 exceeding the calyx. 



* * Leaves not sweet-scented: flowers large, pinlc, purple, ichite, $*c., the tiro 



upper petals longer and broader than the three lower and streaked or spotted: 

 shrubby and erect. (All much, mixed.) 



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

 cupped, soft-downy. 



P. cordatum, HEART-LEAVED P. Like the last or less hairy, with flat 

 ovate-heart-shaped leaves. 



P. angul6sum, MAPLE-LEAVED P. Harsher-hairy ; the leaves rigid, in- 

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

 heart-shaped), sharply toothed. 



4. Leaves decidedly lobed or cut, in some species compound or decompound, 

 * Smooth and pale or glaucous, rounded, palmately 5 - 1 -cleft. 



P. grandifl6rum, GREAT-FLOWERED P. Shrubby ; peduncles bearing 

 about 3 large flowers, with white petals 1|' long, the two upper larger and ele- 

 gantly veined or variegated with pink or rose-color. 



* * Silky-hoary, pinnateJy veined and somewhat pinnatijld. 



P. tricolor, THREE-COLORED P. Low, rather shrubby ; the long-pctioled 

 small leaves lance-oblong ; peduncles bearing 2 or 3 showy flowers ; the three 

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

 rather smaller, ' long : not common. 



* * * Sojl-hoary or velvety, palmately 3-parted, small : no obvious stipules. 



P. exstipulatum, PENNY-ROYAL P. Low, rather shrubby ; leaves with 

 the sweet scent of Penny-Royal or Bergamot, ' wide, the lobes wedge-shaped 

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



* * * * Hairy, rouqhish, or downy : leaves more or less pinnatifid or pinnately 



compound or the main lobes or divisions pinnatijid, baltamic or strong- 

 scented : stipules present. 



P. quercifolium, OAK-LEAVED P. Shrubby, hairy and glandular ; 

 leaves deeply sinuate-pinnatitid, with wavy-toothed blunt lobes (the lowest 



