GERANIUM FAMILY. 97 



bearing many sessile flowers in a head ; petals rose-purple, barely ^' 

 long. 



P. tomentosum, Jacq. 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 panicled 

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



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

 straggling, from a very short, scaly stein or base ; leaves rounded and 

 cnnate, soft-velvety, small ; flowers on short pedicels, very small ; petals 

 / white, scarcely exceeding the calyx. 



* * Hairy, roughish, or occasionally downy ; leaves more or less pinnat- 

 ijld or pinnately compound or the main lobes or divisions pinnatifid. 



P. quercifblium, Ait. OAK-LEAVED P. Shrubby, hairy, and glandular ; 

 leaves deeply sinuate-pinnatind, with wavy-toothed blunt lobes (the low- 

 est ones largest, making a triangular-heart-shaped outline), often dark- 

 colored along the middle, unpleasantly scented; petals purple or pink, 

 the two upper (!' long) much longest. 



P. graveolens, Ait. HEAVY-SCENTED P. Shrubby and hairy like the 

 last ; leaves palmately 5-7-lobed or parted, and the oblong lobes sinuate- 

 pinnatind ; petals shorter. 



P. rddula, Ait. ROUGH P. Shrubby, rough and hairy above with 

 short bristles ; the balsamic or mint-scented leaves palmately parted and 

 the divisions pinnately parted or again cut into narrow linear lobes, with 

 revolute margins ; peduncles short, bearing few small flowers ; petals 

 rose-color, striped or veined with pink or purple. 



P. fulgidum, Ait. BRILLIANT P. Shrubby and succulent-stemmed, 

 downy ; leaves mostly 3-parted, with the lateral divisions wedge-shaped 

 and 3-lobed, the middle one oblong and cut-pin natifid ; calyx broad in 

 the throat ; petals obovate, scarlet, often with dark lines, ' long. 



P. triste, Ait. SAD or NIGHT-SCENTED P. Stem succulent and very 

 short from a tuberous rootstock, or none ; leaves pinnately decompound, 

 hairy ; petals dull brownish-yellow with darker spots, sweet-scented at 

 night. 



P. exstipulatum, Ait. PENNYROYAL P. Low, rather shrubby ; leaves 

 (with no stipules) with the sweet scent of Pennyroyal or Bergamot, ' 

 wide, the 3 palmate lobes wedge-shaped and cut-toothed ; flowers small 

 and insignificant, white. 



7. TROPJBOLUM, NASTURTIUM or INDIAN CRESS. (Greek: 

 a trophy, the foliage of the common sort likened to a group of shields.) 

 Cult, from South America, chiefly Peru, for ornament, and the pickled 

 fruits used as a substitute for capers, having a similar flavor and pun- 

 gency ; flowers all summer, showy. 



* Leaves obscurely, if at all, lobed. 



T. majus, Linn. COMMON N. Climbing high, also low and scarcely 

 climbing variety ; leaves roundish and about 6-angled, peltate towards the 

 middle ; spur straight, attenuate, petals much longer than calyx, all shades 

 of yellow and red, from cream-white to nearly black, pointless, entire or a 

 little jagged at the end, and the 3 lower and longer-clawed ones fringed at 

 the base ; also a full double variety. 



T. minus, Linn. SMALLER N. Smaller ; petals with a bristle-like 

 point. Much less common than the preceding, but mixed with it. 



T. Lobbianum, Veitch. Pilose all over except the petals and upper side 

 of the leaves ; leaves obscurely lobed, the lobes mucronulate ; spur 

 straight, thickish, three lower petals long-clawed, deeply toothed, fringed 

 at base ; shades of red chiefly, to nearly black. Colombia. 

 GRAY'S F. F. & G. EOT. 7 



