PELARGONIUM 



PELARGONIUM 



1263 



Included this plant in his Geranium cucullatum, but 

 Aiton separated it as a distinct species. Linnaeus' 

 G. cucullatum was founded on literature. One of his 

 sources of information 

 was Dillenius' "Hortus 

 Elthamensis," with a pic- 

 ture ; but this picture, 

 which is reduced one- 

 half in Fig. 1704, is what 

 i.s now known as P. an- 

 gulosum. This is one of 

 the species which has 

 entered largely into the 

 Pelargoniums of florists. 

 9. domesticum. COM- 

 MON, SHOW, FANCY and 

 LADY WASHINGTON GE- 

 RANIUMS (or PELARGO- 

 NIUMS). Fig. 1705. The 

 writer proposes this 

 name for the garden type 



1707. 



Pelargonium Radula (above) 

 and P. eraveolens (X %) 



1708. Pelargonium denticulatum. 

 (XK.) 



of fancy Pelargonium. 

 The race is said to be 

 derived chiefly from .P. 

 cucullatum , P. angu- 

 losum and P. grandi- 

 florum, but the writer 

 can see little evidence 

 of the blood of P. gran- 

 diflorum. It seems 

 to be nearest to P. cu- 

 cullatum, having the 

 cucullate or disk- 

 shaped not lobed Ivs. and mostly the soft-hairiness of 

 that species. In many of them, however, the leaves are 

 distinctly angle-lobed, suggesting P. angulosum. It is a 

 fair question whether P. cucullatum and P. angulosum 

 are themselves to be considered specifically distinct. P. 

 domesticum is meant to comprise the whole range of 

 garden forms of the Show or Lady Washington Pelar- 

 goniums. The name will enable one to talk about these 

 garden plants with precision. To many of these garden 

 forms specific botanical names have been given, so that 

 P. domesticum is not the first name that has been ap- 

 plied in this group, but the writer is not aware that any 

 collective or group name has been given. Sweet, in 

 particular, has given Latin names to various forms. 

 These old names, however, apply to particular histori- 

 cal forms, and it would be violence to enlarge their 

 application to cover the entire group, and it would be 

 difficult to select any one of them as more applicable, 

 under botanical rules, than others. It is also inaccurate 

 to call this garden form either P. cucullatum or P. an- 

 gulosum. 



cc. Lvs. sharply S-7-lobed and sharply toothed or 

 serrate. 



10. grandifldrum, Willd. Shrubby, glabrous and 

 glaucous: Ivs. long-stalked, strongly 3-7-nerved from 

 the top of the petiole, deeply 5-7-lobed, the lobes broad 

 and .sharp-toothed, the stipules ovate and mucronate: 

 fls. about 3 on each peduncle, the stalk-like calyx-tube 

 3-4 times as long as the lanceolate segments, the obo- 

 vate white petals (upper 2 with red lines) 3 times as 

 long as calyx-segments. A handsome and distinct spe- 

 cies, not now in cult, in its pure form. 



11. capitatum, Ait. Stems weak and trailing, with 

 long white hairs, woody at the base: Ivs. long-stalked, 

 cordate. 3-5 lobed and the lobes rounded and toothed: 

 peduncles longer than the Ivs., densely many-fid., the 



80 



fls. sessile, rose-purple, with calyx-tube much shorter 

 than the hairy mucronate calyx-lobes. Plant rose- 

 scented, but not in general cultivation in its pure form. 



ccc. Lvs. cordate-lobed, soft and velvety. 



12. tomentdsum, Jacq. Plant rather thick- and soft- 

 stemmed, long white-hairy all over: Ivs. very long- 

 stalked, very broadly cordate-ovate, 3-5-7-lobed and 

 small-toothed, soft and velvety: stipules ovate-acumi- 

 nate, withering: fls. small, white, with red near the cen- 

 ter, in a lax panicle. Scent like peppermint, and for 

 that reason it is somewhat grown. The stems are long 

 and straggly. 



cccc. Lvs. deeply several-many -lobed, with narrow 

 divisions rather rough or stiff, strong -scented. 

 ROSE GERANIUMS. 



13. quercifdlium, Ait. OAK-LEAVED GERANIUM. SCAR- 

 LET-FLOWERING ROSE GERANIUM. Fig. 1706. Shrubby 

 and branchy, somewhat hairy and glandular: Ivs. with 

 stalks 2-4 in. long, cordate-ovate in outline, with 2-3 

 pairs of oblong side lobes (Ivs. pinnatifid), which ex- 

 tend nearly to the midrib and are again toothed and 

 notched: stipules small, 2 pairs at each node: fls. few- 

 several rather small, red or purplish, in umbels and 

 with short pedicels. A rather common greenhouse 

 plant, the Ivs. often with a dark spot. 



14. gravdolens, Ait. Fig. 1707. Much like the last, 

 but Ivs. longer - petioled and palmately 5-7-lobed or 

 parted, the broad lobes flat and pinnatifid into many 

 mostly obtuse lobes: stipules cordate-acute: fls. many 

 on mostly long peduncles, pink or light purple, small, 

 the calyx hairy and nearly sessile, the calyx-lobes half 

 as long as the petals. This is one of the commonest 

 forms of Rose Geranium. A typical leaf is well de- 

 picted in Fig. 1707 (lower figure). 



15. Radula, Ait. Fig. 1707. Differs from P. graveolens 

 in the narrower divisions with revolute margins of the 

 Ivs.: the Ivs. are deeply palmately parted, the lobes 

 narrow-linear and pinnatifid, all rough-hispid on the 

 upper surface and soft-pubescent beneath: fls. small, 

 pale purple, with dark streaks. Does not appear to be 

 in the trade in a pure form, bu the narrow-lvd. Rose 

 Geraniums are probably hybrids between this and P. 

 graveolens. 



16. denticulatum, Jacq. Fig. 1708. Much like P. 

 Radula, but the leaf -lobes very denticulate and flat: Ivs. 

 glabrous and viscid 



above, plant weaker. 



It has a balsamic odor. # 



Perhaps it has entered 



into the garden forms 



of Rose Geranium. 



ccccc. Lvs. small) 

 round - cordate, S- 

 lobed half their 

 depth and the mar- 

 gins toothed or jag- 

 ged. 



17. crispum, Ait. 

 Much branched and 

 very scabrous or rough; 

 Ivs. 2-ranked, small and 

 rigid, short - stalked, 

 cuneate, truncate or 

 slightly cordate at 

 base, coarsely toothed : 

 fls. 2-3 on short pe- 

 duncles, violet, the low- 

 er petals narrow. A 

 neat, strict - growing .*.,-*% 

 plant with lemon- /-*''' '*[ 

 scented foliage. Prob-'' 

 ably not in general cul- 



tivation now in a pure 1709> Pelareonium Limonium . 



18. Limdnium, Sweet. 



LEMON GERANIUM. Fig. 1709. Lvs. larger than in the 

 last, not 2-ranked, soft: fls. purple and lilac. A garden 

 hybrid, P. crispum apparently being one of its parents. 

 There is a form with variegated Ivs. Sometimes known 



