1734 



KALMIA 



KALMIA 



position. Transplanting, if carefully done either early 

 in fall or in spring, is not difficult; a mulching the first 

 season after planting will be of much advantage to 

 keep the roots from drying in summer and from frost 

 in winter. Propagation is usually by seeds sown in 

 sandy, peaty soil in pans or boxes in early spring and 



2030. Kalmia latifolia var. myrtifolia. ( X 14) 



kept in a coldframe or greenhouse. The seedlings 

 should be pricked off as soon as they can be handled, 

 and after they are again established gradually hardened 

 off and the following year transplanted in frames or 

 beds outdoors. Varieties of K. latifolia are usually 

 increased by side-grafting on seedhngs in the greenhouse 

 or by layers, since it grows less readily from cuttings, 

 while the other species may be propagated by cuttings 

 of half-ripened wood under glass. 



A. Fls. in umbels or corymbs. 

 B. Lvs. evergreen. 

 c. Branchlets terete: b'S. pale green beneath. 

 D. The lvs. alternate, pointed. 

 latifdlia, Linn. Mountain or American Laurel. 

 Calico Bush. Fig. 2029. Shrub, 4-10 ft. high, 

 rarely tree to 30 ft., with dense, round-topped 

 head : lvs. petioled, alternate or irregularly whorled, 

 oblong or elliptic-lanceolate, acute at both ends, 

 dark green above, yellowish green below, 3-4 in. 

 long: fls. in large, terminal compound corymBs" on 

 viscid peduncles; corolla rose-colored to white, with 

 purple markings within, about J^in. across. May, 

 June. New Bruns. to Fla., west to Ohio and Tenn. 

 B.M. 175. Em. -443. S.S. 5:236, 2.37. A.F. 13:.32. 

 Gng. 1:306; 3:1; 7:289. Gn. 22:6; 27, 

 p. 549; 33, p. 607; 52, p. 77; 61. p. 9. G.M. 

 51:551. G. 19:708; 21:664; 35:33, 497. 

 F.E. 9:401. C.L.A. 3:181. A.G. 19:465. 

 M.D.G. 1903:576-79. G.F. 3:453. Mn. 

 8:183. J.H. IIL 51:361. Var. alba, Bosse. 

 Fls. almost white. Var. fuscata, Rehd. 

 Corolla inside with a broad dark purpish 

 brown band. Var. myrtifolia, Bo.sse (var. nana or 

 var. minor, Hort.). Fig. 2030. Lvs. small, 1-2 in. 

 long, deep green, of slow growth, forming a low, 

 dense bush. G.F. 8:317 (adapted in Fig. 20.30). 

 R.H. 1883, p. 11. Gn. 29, p. 379; 33, p. 603. Var. 

 obtusata, Rehd. Of compact habit and slow growth: 

 lvs. elliptic or oval, obtuse at both ends, 2-3 in. 

 long. Var. polypetala, Nichols, (var. monstrubsa, 

 Mouillef.). Fig. 2031. OoroUa divided into 5 nar- 



row petals which gives to the fls. a feathery appear- 

 ance. G.F. 3:453 (adapted in Fig. 2031). Var. rabra, 

 Sweet (var. Pavdrlii, Andre). Fls. deep pink. R.H. 

 1888:540. 



DD. The Ivs- mostly opposite or in 3's, obtuse. 

 E. Under side of lvs. glabrous. 



angustifdlia, Linn. Sheep-Laurel. Lambkill. 

 WiCKY. Shrub, to 3 ft.: lvs. petioled, usually oblong, 

 obtuse, light green above, pale beneath, 1-2}^ in. long: 

 corymb lateral, many-fid., compound or simple; fls. ]4- 

 3^in. across, purple or crimson; sepals ovate, glandu- 

 lar. June, July. From Newfoundland and Hudson Bay 

 to Ga. B.M. :331. Em. 445.— There are varieties with 

 light purple fls., var. rdsea, Hort.; with crimson fls., 

 var. rftbra, Lodd. (var. hirsiita, Voss). L.B.C. 6:502; 

 with white fls., var. Candida, Fern.; with ovate or oval 

 lvs., var. ovata, Pursh, and of dwarf habit, var. pfimila, 

 Bosse (var. nana, Hort.). 



ee. Under side of lvs. pubescent. 

 Carolina, Small (A', caroliniana. Day). Similar to 

 the preceding, but the young parts finely pubescent: 

 lvs. oval to oblong, obtuse, grayish pubescent below, 

 %-lH in- long: fls. purphsh, Jsin. across, in small 

 corymbs; sepals oblong-lanceolate, puberulous. June, 

 July. Va. to N. C. B.B. (ed. 2) 2:684.— Has proved 

 hardy at the Arnold Arboretum. 



CO. Branchlets 2-edged: lvs. glaucous-white beneath, all 

 opposite or in 3's. 

 polifdlia, Wang. (K. glaiica. Ait.). Low, straggling 

 shrub, to 2 ft. : lvs. almost sessile, oval to hnear-oblong, 

 obtuse, revolute at the margins, J'2-1}-^ in. long: fls. in 

 simple terminal umbels, slender-pedicelled, H-5iin. 

 across, rose-colored or purphsh. May, June. New- 

 foundland to Pa. and in the Rocky Mts. from Sitka to 

 Cahf. B.M. 177. L.B.C. 16:1.508. Em. 441. Var. 

 microphylla, Rehd. (A', microphylla. Heller), is the 

 alpine form of the Rocky Mts., growing only a few 

 inches high, and with very small lvs., 3^2in. or less 

 long. Var. rosmarinifdlia, Rehd. (A", glaiica var. rosma- 

 rinifblia, Pursh), has narrow, hnear-oblong, strongly 

 revolute lvs. 



2031. Kalma latifolia var. 

 polypetala. (x-'j) 



A 



