liW PYRACANTHA 



ate greenhouse; also by layers and sometimes by graft- 

 iiifj on Hawthorn or Cotonfiister. Pyriu-antha is a genus 



tains 2 equal ovules iu each cell, while in Crata'j^u.s each 

 cell contains only one fertile ovule and a second imper- 

 fect and smaller one. Corymbs niany-fld.; stamens 

 about 20, with yellow anthers: fr. red or orange, rarely 

 white, with 5 stones. 



coccinea, Roem. (Cotonedstei- Pymcdnfha, Spach. 

 Crataegus Pyracdntha, Borkh. Mi:<pilus Pi/racdiitha , 

 Linn;). Fig. 2016. Shrub, attaininL' (i ft,, rarely 20 ft., 

 with numerous short spinex : youn:; Id mrlii, i , ;iii,i p,.|i- 



oles grayish pubescent: Iv^. ,i\:ii n.,,- 



late, acute, crenate, glabrous mt ^h:: :i ; ■Inn 



young, %-l% in. long: corvmhs imlx ..ni, iii;iri\ lid.. 

 about 1% in. broad : fls. small, white : fr. numerous, 



ight red, about one-f ' 

 W. Asia.-Var. LaUnd 

 Idta, Hort., notWenzig), is of more vigorous growth, 

 with slender branches: Ivs.loss deeply rrcnate: corymbs 

 larger: fr. bright orange-reil. Well ^nitid for covering 

 walls and said to be hardier than tin' i\ |h . Var. pauci- 

 ildra, Dipp. Of low, dense Ijal.it and vej y thorny: co- 

 rymbs small: fr. yellowish red. Hardy ami well suited 

 for hedges. Var. fructii Albo is a form with white or 

 yellowish fruits. 



crentiiata, Roem. (Cotonedsfer erenuldta, Wenzig. 

 Cm f!!,/ II s rriiiiili'ita, Roxb. ). Closely allied to the pre- 

 ceding': liranehlets and petioles rusty-pubescent, gla- 

 hivHi^ ai l.'imih: Ivs. narrower, oblong to oblanceolate, 

 ol.in-e ,,r ariiii,li. more leathery, bright green and glossy 

 ub'ive, 1-2 in. long: corymbs glabrous : fr. globose, bright 

 orange-red. May, June. Himal. B.R. 30:52. -More tender 

 than the preceding, with handsomer, glossier foliage. 

 Alfred Kehdek. 



2016. Pyi 



(xK). 



PYBfiTHEUM in garden literature and language 

 nearly always means Pyrethrtim rosea iii, the handsome 

 summer-blooming hardy perennial com po^iie, with linely 

 dissected foliage, pictured on pajre :;l_' .-i ihi «..rk, 

 Fig. 463. It is a favorite border i)laiii in i:nr.i|,. . hut 

 little known in America, although it has sixeial hun- 

 dred varieties. It requires special culture, for which 

 see p. 310. Nearly all the Pyrethrums with personal 

 names, as Ajax, Ceres, etc., are forms of this species. 

 These varieties are also listed in cat.nlogues as hybrid 

 Pvrethrnins ..,■ P I. „i. ,■:.!„, „ . MMn.;i-h the genus 



I'' '■'■'hri'n' " ■' - '"'•<- I ■! iM ii.. r:,nk of a mere 



-■:-■■ ■ <' ■ ihi-um is still 



]■' '■ ' i! - , i' , 11 lias become 



oommnii or popular name of Pijnlhriitii roxenni and its 

 varieties, which are now referred by botanists to Chrys- 

 aiitJiemvm coccineum. 



In Engler and Prantl's NatUrlichen Pflanzenfamilien, 

 Hoffmann makes eight sections of Chrysanthemum. 

 Among these the section Pyrethrum is distinguished, 

 chiefly, though not entirely, by the fact that the plants 

 are perennial and by the 5-10-ribbed akene. In this 



section Hoffmann places the florists' chrysanthemums 

 (generally said to be the product of ('. Jiidinimx 

 Hinense); also Pyrethrum roseunt; also the white 

 weed or oxeye daisy, C. Leueanthemum ; the costmary, 

 C BaUamita, var. tanacetoides ; and C. cinerariveMium 

 and corymbosum. Here also belong the Golden Feather, 



^<5l 



2017. Golden Feather. 



bedding plant with yello 



Figs. 2017, 459, the well-known bedding plant with 

 golden foliage, and C. uligiriosiim. which has attracted 

 considerable notice within recent years. ■\y_ j/i 



F'S'BOLA (name said to be derived from Pyrus, name 

 of the pear tree). tj,-iri)reip. Wintergreen. Shinleaf. 

 Perennial ever^'i-e, n, stemh-ss herbs, with a cluster of 

 orbicular or elliptical haves attached to the top of the 

 branching, sliinhi-, iimh iijround rootstocks: scape 

 angular and sealy-hiaited. hearing racemes of white, 

 greenish or purple, nodding fls. in summer. Fls. slightly 

 irregular; sepals 5, imbricated; petals 5; stamens 10; 

 style declined or straight: capsule 5-lobed, splitting 

 from below upwards, bearing numerous small seeds. 

 The genus has about a dozen species and several varie- 

 ties, found in the north temperate zone from Great 

 Britain to Asia and Nortli America south to Mexico. 

 Ahout 10 species occur in Norfli America. They grow 

 naturally in rather jmh,,- sandy ti]daiids and in bogs. 

 Like many other menihi IS .d till' healh family. Winter- 

 greens are difficult to enli i\ ai.- and will not succeed in 

 garden soil. In removing ilnni lioni the woods, care 

 should be taken to se.mn- a lariie hall of earth. They 

 may then succeed in the shade of evergreens and upon 

 rockeries in peaty soil. The species are scarcely in 

 general cult. ; they are offered by dealers in native 

 plants. P. rotundifolia is probably more cult, than the 

 others. For a fuller botanical account, see Gray's Syn. 

 Flora N. Amer. 



A. Fls. r[y(^enish ; style straight. 



secunda, Linn. Height about 6 in. : Ivs. thin, ovate, 

 crenate, 1-1% in. long: fls. .small, in a one-sided, dense, 

 spike-like raceme. North Atlantic states to Lab., Rocky 

 Mts. to arctic regions, N. Europe to Japan. 



AA. Fls. greenish white ; style curved downward. 



chlor&ntha, Swartz. Height .5-10 in.: Ivs. small, or- 

 bicular, dull, shorter than the petiole: fls. few; anther 

 cells with beaked tips. Lab. to Pa., Rocky Mts., north 

 to subarctic regions. • 



elliptioa, Nutt. Height 8-10 in.: Ivs. broadly oval or 

 oblong, thin, dull, serrulate, 2-2}^ in. long, longer than 

 the petiole; loosely i5-10-fld. Canada to Brit. Col. and 

 through N. Atlantic states to New Mex., Japan. 



plota, Smith. Height .5-10 in.: Ivs. thick, broadly 

 ovate to spatulate, blotched with white above, dull, 

 longer than the petioles. Pacific slope. 



AAA. Fls. ti'hite to pink or purple. 



rotundlidlia, Linn. Height 5-12 in.: Ivs. orbicular, 

 about 2 in. long, thick, shining above, shorter than the 

 petioles: fls. numerous: bracts conspicuous. Var. uli- 



