LAYIA 



LATIA (Thomas Lay, naturalist in the Beechey voy- 

 e). Compdsitce. About 13 species of California an- 

 iials, with yellow or white fls. in spring or early sum- 

 ?r. Lvs. chiefly alternate, all entire or some, particu- 

 rly the lower, with about 2 pairs of linear side lobes 

 ove the middle of the leaf. For general culture they 

 e probably inferior to Madia elegans, which has a simi- 

 * habit and is distinguished by the blood-colored spot 

 the base of the rays. The fls. in Layia are about 1-1% 

 . across, and the rays are distinctly 3-toothed. The 

 ecies described below are diffuse, much-branched and 

 out a foot high. It is probable that for best results 

 ey should be started early indoors, and transplanted 

 tdoors in May. Easy to grow. 



A. Hays entirely white. 



glanduldsa, Hook. Hispid, sometimes glandular: Ivs. 

 \% in. long, 2-3 lines broad, linear, the upper ones all 

 ,tire: rays 8-13. B.M. 6856. Not cult., but desirable. 



AA. Bays yellow, sometimes tipped white 



B. Plants hairy. 



Slogans, Torr. & Gray. All the upper Ivs. entire: rays 

 -12, yellow, rarely white- tipped : pappus white or whit- 



1251. Air-Layering. 



i, its copious villous hairs much shorter than the awn- 

 siped bristles, which are long plumose below the mid- 

 <!. This and the next have a few small, scattered, 

 slked glands which are wanting from the last 

 t>. Gn. 31, p. 465. Procurable from western 

 electors. Perhaps the best of the genus. 

 )latygl6ssa, Gray. Some of the upper Ivs. pin- 

 i:ifid : rays light yellow, commonly white- 

 tped : pappus of stout, awn-like bristles which 

 * upwardly scabrous. B.M. 3719. Cult, in Eu. 



BB. Plants not hairy or at most minutely 

 pubescent. 



/alligl6ssa, Gray. Akenes villoxis-pubescent or 

 ptly glabrate: pappus of 10-18 very unequal 

 al rigid awl-shaped awns. B. R. 22:1850 (er- 

 iieously as Oxyura chrysanthemoides). 



hrysanthemoides, Gray (Oxyura chrysanthe- 

 tUdes, DC.). Akenes wholly glabrous, broader: 

 ppus none. Not B.R. 22:1850, which is the 

 >ve. According to Thorburn this is a hardy 

 a lual trailer with white fls., blooming in sum- 

 ir and autumn. 



LEDUM 895 



LEATHER FLOWER. Clematis Vioma. L. Jacket. 

 Eucalyptus punctata. L. Leaf. Chamcedaphne. L. 

 Wood. Dirca palustris; also Cyrilla. 



1252. A horizontal multiple layer. 



LEBIDIEROPSIS (Greek; resembling Lebidiera, a 

 genus now included in Cleistanthus). JSuphorbiacece. 

 This genus includes a small tree with very hard wood, 

 and of unknown value, introduced from a botanical gar- 

 den of northern India by Reasoner Bros., Oneco, Fla. 

 Lebidieropsis was reduced by Bentham and Hooker to 

 the rank of a subgenus of Cleistanthus, but in the 

 Flora of British India Hooker says that Lebidieropsis 

 should probably be restored, the seeds being globose, 

 while in Cleistanthus they are always oblong. The seeds 

 also differ in structure. Generic characters of Cleistan- 

 thus are: trees or shrubs: Ivs. alternate, 2-ranked, en- 

 tire: fls. small or minute, in axillary clusters and spikes, 

 mono3cious; calyx 5 -cleft or 4-6-cleft; petals as many, 

 minute; stamens 5; filaments united in a column in the 

 center of the disk : ovary 3-celled. 



orbicularis, Muell., Arg. Lvs. l%-4 in. long, l%-3 in. 

 wide, leathery, broadly obovate or elliptic, tip rounded 

 or retuse, glaucous beneath, nerves 5-8 pairs: fls. silky, 

 3-6 in a cluster; petals fleshy, narrow: seeds 2 lines 

 thick, chestnut-brown, with scanty albumen. Hooker 

 does not recognize the 3 varieties distinguished by 

 Mueller on the shape and hairiness of the Ivs. 



LEDUM (ledon, ancient Greek name of Cjstus). 

 Ericacece. LABRADOR TEA. Ornamental low evergreen 

 shrubs with alternate, entire, short-petioled Ivs., slightly 

 fragrant when bruised, and with handsome white fls. in 

 terminal umbels, appearing in early summer. They are 

 all hardy North, and well adapted for borders of ever- 

 green shrubberies or for planting in swampy situations. 

 They thrive as well in sunny as in partly shaded situa- 

 tions, and prefer a moist, sandy and peaty soil. Trans- 

 planting is easy, if the plants are moved with a sufficient 

 ball of earth. Prop, by seeds sown in spring in sandy 



PLANT is Amorpha canescens. 

 .EADWORT. Plumbago. 

 57 



1253. Serpentine Layering. 



peat and treated like those of Azalea and Rhododen- 

 dron, the young plants growing but slowly; increased 

 also by layers and division. Three species in the arctic 

 and cold regions of the northern hemisphere, all found 



