PENNSYLVANIA 



PENTAS 



12G7 



The Bartram Garden was tl 

 United States to gather plant? 

 pose of study. See p. 758. It 

 liy John Bartram along the Sd 

 iu that part of Philadelphia 1 



:ingsessing; also 



variety. 



iiinty has become 



of the numerous 



ii's of producing 



a'tt.iiipt'in the 



•Flo 



f the Phil- 



Ainerica. It is a branched plant growing 2-5 ft. high, 

 with fls. which open at noon and close at the following 

 dawn. The fls. are nearly VA in. across, 5-petaled, 

 axillary, short-peduncled. Recommended to lovers of 

 rare, tender annuals. 



A genus of one species. Bractlets 3, caducous: sepals 

 5, lanceolate, connate at the base; petals 5; stamens 20, 

 connate at the base, 15 fertile in 5 groups of 3 each, 

 alternating with 5 staminodes which are nearly as 

 long as the petals: ovary 5- 

 celled ; cell.s many-ovuied; 

 capsule loculicidallv 5- 

 valved : seeds 8-12, in 2 

 series in each cell. 



phoenicea, Linn. Lvs. 3-5 

 in. long, 1-nerved, crenate- 

 serrate; petiole 1 in. long; 

 stipules awl-shaped. B. R. 

 7:575. 



PfiNTAS (Greek, five; re- 

 ferring to the floral parts; 

 which, however, is not 

 strictly true of the genus 

 nor a rarity in the family). 

 l^ubiflrrrf . Nine species of 

 fender l]'rhs ,iii,| sni. shrubs, 



the same family, l.ut not 

 r clcisisi ally, 'Ihey are 

 all natives of tropical Africa, 

 except one which comes from 

 Madagascar. The favorite 

 species is P. r„rii,<i, whose 



1712. Pennsyl 



Through the untiring and zealous efforts of that broad- 

 minded horticulturist, Thomas Meehan, the city of Phila- 

 delphia in 1891 purchased 12 acres of land from the 

 Kastwick estate, which contained the original garden, 

 and thus the preservation of this old horticultural mon- 

 ument seems to be assured. It is now only one of many 

 small parks possessed and cared for by the city of Phil- 

 adelphia. The principal parks of the state are Fairmount 

 "ark in Philadelphia, in which definite work was begun 

 auout 1860; the buildings of the Centennial Exposition 

 were placed on these grounds in 1876. It has an area 

 of 2,200 acres and is well maintained. Allegheny parks 

 occupy the ground formerly known as the Commons in 

 Alleghenv Cifv. Of more recent establishment are 

 Schenly and Highland Parks, in Pittsburg. The ceme- 

 teries of the larger cities are in the hands of competent 

 superintendents, and the park ideas of landscape and 

 ornamentation are becoming the prominent features of 

 these sacred grounds. Qeo. q butz. 



PENNYROYAL of Europe, Mentha Puleqimn ; ot 

 Am.Tira, H,,l,,,Ma piilepioides. Bastard P., or Blue 

 Curls, is Tnchiislema dichotomum. All are members 

 of the Mint family. 



The garden Pennyroyal, Mentha Piilenium, is a Euro- 

 pean perennial, used for seasoning, it is one of the 

 "sweet herbs." It is easily grown, profiting by a win- 

 ter protection of leaves or litter. Prop, by seeds or di- 

 vision. Beds should be renewed frequently. 



PENTACHfflTA (Greek, referring to five bristles at 

 the base of the pappus). Comp^stltf. Six species of 

 low, slender, Californian annuals witli flir.ad-like, al- 

 ternate lvs. and small or medium ^i/. il li. ail>. the rays 

 when present usually yellow, Nom. tim. s wliite: the 

 disk-fls. sometimes turning pui|.|.-. /'. .nu-m, Nutt., 

 growing ^^-Vl in. high and with 7-10 det-p golden rays, 

 was otTercd by Orcutt in 1891 and was pictured in Gt. 

 ll,"i:i, liut has no horticultural standing. 



PENTAPETE8 (Greek, haviytg 5 Uares; an ancient 

 name of some cinquefoil, transferred by Linnipus to 

 this plant, which has 5 leafy growths (staminodes) ac- 

 companying the stamens). SterciiUdvetp. A pretty red- 

 fid, tender annual, widely distributed in tropical Asia 



lac 



I lugh 



pie. 



A good cluster is 3 in. across ami ■ in- J" "i more 



fls., each of which is ]4 in. across. I'Ij.- 11,^, an- about % 

 in. long, funnel-shaped, and generally have 5 spreading 

 lobes, sometimes 4 or 6. It is usually grown like Bou- 

 vardia in warm conservatories for winter bloom, but it 

 is sometimes used for bedding in warmer countries, as 

 it gives thrie nioutlis of rather showy bloom when 

 treated iik.- Laiitana. In general, the species seem to 

 be less Hortljy than P.ouvardias. 



Generic' .liaratters : Herbs or subshrubs, erect or 

 prostrate, hispid or tomentose: lvs. opposite, stalked, 

 ovate or ovate-lanceolate ; stipules multifid or multi- 

 .setose: inflorescence usually corymbose: calyx-lobes 

 4-6, inequal; corolla pilose, the long tube dilated and 

 villous in the throat; lobes valvate; stamens 4-6, in- 

 serted below the throat; filaments short or long; an- 

 thers fixed at the back, included or exserted: disk tu- 

 mid or annular, often produced into a cone after anthe- 

 sis: ovary 2-loculed: ovules numerous: style-branches 

 papillose: capsule membranous or leathery, 2-loculed, 

 loculicidal; seeds minute. Six species are given in the 

 Flora of Tropical Africa 3:45 (1877). 

 A. Fls. not white. 



c&mea, Benth. Erect or decumbent, 1-2 ft. high, 

 shrubby at base, merely puberulous, not at all rusty- 

 hairy: lvs. 1-6 iu. long, 4K lines to 2 in. broad, ovate, 

 elliptic or lance-oblong: cjTnes peduncled or not. B.M. 

 ■4086. B.R. 30:32. R.B. 21:217. Gn. 21, p. 329. J.H. 

 III. .30:209. R.H. 1870:1.30 (var. kermesina). Var. 

 Quartini4na (P. QuartiniAna. 0\iv.) is a rosy-fld. var. 

 said to be much better than the type. Gt. 45, p. 464. 

 AA. Fls. white. 



lanceol&ta, Hort. This novelty of 1900 is figured in 

 Dreer's catalogue, which says, "A pretty half-shrubby 

 greenhouse plant, not unlike a Bouvardia in general ap- 

 pearance, but flowering more profusely and continuously. 

 It may be planted in the open border during the sum- 

 mer, "but it is valuable chiefly as a winter-flowering 

 pot-plant, for which purpose it is especially well suited, 

 being in flower all the time. The pure white flowers 

 are produced in flat heads of 15 to 30 flowers each, 

 similar to a Bouvardia, but much larger, and last in 

 perfection a long time." w. M. 



