JESCULUS 



jESCULUS 



227 



2. carnea, Hayne (&. HippocdstanumxPavia. A. 

 rubiciinda, Loisel., &. intermedia, Andrd). Tree, 20-40 

 ft.: Ifts. mostly 5, nearly sessile, cuneate-obovate, ere- 

 nate-serrate, nearly glabrous: panicles 5-8 in. long; fls. 

 varying from flesh-color to scarlet: fr. with small 

 prickles. Garden origin. B.R. 1056. L.B.C. 13:1242. 

 F.S. 2229-30. F.E. 23:607 (habit). Common in parks 

 and on roadsides. Handsome and desirable; the foliage 

 is darker and of firmer texture than that of the preced- 

 ing species and resists drought better. Many garden 

 forms, according to the different shades in coloring; 

 one of the best is var. Briotii, Nichols. (M. rubi&inda 

 var. Briotii, Carr.), with bright scarlet fls. R.H. 1878: 

 370. Also var. plantierensis, Rehd. (M. plantiereiisis, 

 Andrd), with yellowish white fls. tinged with pink and 

 fading to pink and with bluntly serrate Ifts., is very 

 handsome. 



cc. Lvs. pubescent beneath, at least while young. 



3. turbinata, Blume (JE. sinensis, Hort., not Bunge). 

 JAPANESE HORSE-CHESTNUT. Tree, 30 ft.: petioles and 

 young branchlets pubescent; Ifts. 5-7, cuneate-obovate, 

 crenate-serrate, pubescent beneath when young: pani- 

 cles 6-10 jn. long, dense and rather narrow, pubescent; 

 fls. yellowish white, with a red spot, less than %in. long: 

 fr. verrucose. June. Japan. G.C. III. 5:717; 31:187. 

 S.I.F. 1:71. The Ivs. are larger than those of the pre- 

 ceding species, but the individual fls. are smaller and 

 less strongly marked with red. Hardy at the Arnold 

 Arboretum. 



BB. LJts. stalked: petals 4', calyx 2-lipped; stamens 7-9: 



fr. pear-shaped, smooth. (Calothyrsus.) 



c. Petals nearly equal, oblong-obovate to oblanceolate. 



D. Corolla about 1 in. long. 



4. californica, Nutt. CAIJFORNIA BUCKEYE. Tree 

 with broad top, 30-40 ft.: Ifts. 5-7, petioled, oblong- 

 lanceolate, cuneate or obtuse at the base, sharply ser- 

 rate, glabrous, 4-6 in. long: panicles 3-8 in. long, rather 

 dense; fls. white or pale rose-colored, 1 in. long; petals 

 of equal length. Calif. B.M. 5077. R.H. 1855, p. 150. 

 Gn. 49, pp. 490, 492. S.S. 2: 71, 72. F.S. 13:1312. G.C. 

 111.31:186. G.M. 55:577 (habit). 



DD. Corolla much less than 1 in. long. 



5. chinensis, Bunge. Tree, to 60 ft. : Ifts. 5-7, short- 

 stalked, oblong-obovate to oblong-oblanceolate, acu- 

 minate, cuneate at the base, glabrous beneath, except 

 sparingly hairy on the veins, closely serrulate, 4-7 in. 

 long: fls. less than Yivci. long, white, in elongated cylin- 

 dric panicles: fr. subglobose, slightly depressed at the 

 apex, with thick walls; seeds 1 in. across or less with 

 the hilum occupying about one-half of the seed. May, 

 June. N. China. G.C. III. 52:346, 347. Recently 

 intro. by the Arnold Arboretum and probably hardy N. 



6. Wflsonii, Rehd. Tree, to 80 ft, : Ifts. 5-7, stalked, 

 oblong-obovate to oblong-oblanceolate, acuminate, 

 rounded or broadly cuneate at the base, densely grayish 

 pubescent beneath while young, 4-9 in. long: fls. about 

 J^in. long, the upper petals with a yellow spot, in cylin- 

 dric panicles 6-12 in. long: fr. ovoid, somewhat pointed 

 at the apex, with thin walls; seeds 1]^ in. across with the 

 hilum occupying one-third or less of the seed. May, 

 June. W. and Cent. China. Recently intro. by the 

 Arnold Arboretum, but proved tender in Mass. ; prob- 

 ably hardy south of New York, and a tree highly to be 

 recommended for its very large spikes of white fls. 



cc. Petals unequal, about 1 in. long, the upper ones 

 marked red and yellow, oblanceolate, the lateral ones 

 with oval or obovate blade. 



7. indica, Colebr. Tall tree, to 60 ft. : Ifts. 5-9, obo- 

 vate-lanceolate, short-stalked, finely serrate, cuneate 

 at the base, glabrous or nearly so beneath, 6-10 in. 

 long: panicle to 15 in. long, narrow; fls. about 1 in. long 

 with white unequal petals, the upper with yellow 



blotch, the lower tinged rose. Himalayas. B.M. 5117. 

 G.C. 33:139; 36:206. Gn. 76, p. 399. A handsome 

 tree with large foliage and showy fls., hardy only in the 

 southern states. 



AA. Winter-buds not resinous: claws mostly longer than 



the 5-toothed calyx. 

 B. Fls. yellow to scarlet; petals 4; stamens included or 



somewhat exserted: Ifts. petioled. (Pavia.) 

 c. Petals vittous at the margin (interspersed with glands 



in the hybrid). 

 D. Color of fls. yellow; margin of petals without glands. 



8. glabra, Willd. (M. ohioensis, Michx. Pavia glabra. 

 Spach. P. pdllida, Spach). OHIO BUCKEYE. Small 

 tree, 15-30 ft.: Ifts. 5, oval or cuneate-obovate, finely 

 serrate, smooth: panicles 5-<5 in. long; fls. greenish yel- 

 low; petals of nearly equal length, their claws as long as 

 the calyx; stamens exserted: fr. echinate. May. Pa. 

 to Ala. and Iowa. B.R. 24:51. S.S. 2:67, 68. F.E. 29: 

 773 (habit). Var. Buckleyi, Sarg. (M. glabra var. ar- 

 gitta, Rob. partly). Shrub: Ifts. 6-^7, obovate-lanceo- 

 late, unequally serrate, more acuminate, finely pubes- 

 cent beneath. Has been confounded with the true JE. 

 arguta, Buckl. 



9. octandra, Marsh. (jE. ftava, Ait. M. lutea, Wang. 

 Pavia lutea, Poir.). SWEET BUCKEYE. Large tree, 40- 

 90 ft.: Ifts. 5, oblong-obovate or elliptical, cuneate, 



134. Jisculus georgiana. 



equally serrate, smooth or pubescent beneath : panicles 

 4-6 in. long; petals yellow, very unequal, their claws 

 longer than the calyx; stamens 7, shorter than the 

 petals: fr. smooth. May, June. Pa. to Ga. and Iowa. 

 L.B.C. 13:1280. S.S. 2:69, 70. G.W. 7, p. 145 (habit). 



DD. Color of fls. red or yellow tinged more or less with red. 

 E. Margin of petals without glands, vittous. 



10. georgiana, Sarg. Fig. 134. Shrub, to 6 ft.: Ifts. 5, 

 stalked, oblong-obovate. long-pointed, finely and often 

 doubly serrate, pale yellowish green beneath and quite 

 glabrous: fls. 1 % in. long, in dense panicles 5-6 in. long; 

 calyx narrow-campanulate, red; petals red and yel- 

 low; very dissimilar, the lateral ones broad, usually 

 rounded at the base; stamens 7, shorter than the pet- 

 als, villous below the middle. May, June. Ga. S.T.S. 

 2:197. This is the only species of the jE. octandra 

 group with red and yellow fls. : it is very handsome and 

 has proved perfectly hardy at the Arnold Arboretum. 



11. woerlitzensis, Koehne. Tree: Ifts. obovate- 

 oblong, yellowish green beneath, sparingly hairy along 

 the midrib and bearded in the axils, otherwise quite 

 glabrous, with 17-20 pairs of veins: fls. 1-1 J^ in. long, in 



