1428 



PRESTONIA 



FKESTdNIA (pnibiilily named after Charles Preston, 

 a cnrropuiHlrnt el' Ivay). Apocyndceie. About 30 spe- 

 cifs i,f uill cliiiiljcrs (v'lui tropical America. P. venosa 

 is :i tiiuUr luli:ii,'i> [.hint once offered in America as 

 Jiclutis Huluns. i'rLsluiiia differs fr..ni F..-hit, s in luiv- 

 ingacallous ring inside the comllu i uli' ,ii hm- ihiMnt 



and often 5 linear, erect scales 1" I i ■ n. 



characters: calyx with 5 entire or la ■ i : .1. 



at the base: corolla salver-shaped, tli. i:iii. . ii-i i i^i.a 

 at the throat; lobes 5: ovary with 2 distinct carpels; 

 seeds comose at the apex. 



The following points are adapted from Lowe's Beauti- 

 ful Leaved I'lauts: P. venosa is cultivated for the net- 

 work of crimson veins on its foliage. The plant blooms 

 rarely, and its fls. are far inferior to Echites or Dipla- 

 denia. When properly cultivated it makes a charming 

 subject, but if neglected it is as worthless as a weed. 

 It can hardly be propagated by cuttings; the fleshy 

 roots are cut into pieces 1-2 in. long. The plant de- 

 mands a temperature of 85° F., with an atmosphere as 

 moist as possible. Foliage .should never be syringed. 

 Young plants should be raised every season, as older 

 plants become unsightly. The plant was formerly con- 

 siderably grown, being trained to a balloon-shaped wire 

 trellis. Needs warmth to bring out the markings. 



yendsa, Mottet (EehUes nutans, Anders. Hamadic- 

 tyon veuisum, Lindl.). Lvs. opposite, ovate-lauceo- 

 late, villous beneath: fls. yellow, in pedunculate pani- 

 cles: corolla-lobes roundish, wavy. St. Vincent in the 

 West Indies. B.JI. 2173. Lowe 58. -^y. m. 



PBICKLY ASH, Xoutho 

 phylum nsperriinn 

 Argemoue. 



PEIDE OF INDIA. Meli, 



FBIM. See Ligustrum. 



English P. is Primula vulgaris. 



PRIMULA 



in different flowers of the same specit's IMl- pt.o. Sec 

 Darwin's work, "The Different Forms ' Mi ,.n 

 Plants of the Same Species." This ]■ i^ 



associated with cross-pollination. I'lm i :, - 



to the north temperate zone, only ouc I" in;; l.^iuu m 

 tbe cold parts of southern South America, and one in 

 .lava. They are mostly boreal or alpine plants. About 

 a dozen are native to the colder parts of North America. 

 The greatest extension of the alpine section occnis in 

 the Himalaya region, in which there an ni..rc il an 10 

 species. There are several showy (Inn. .■ >|.rh-. 

 some of which are now in general culii, ai mm In.- 

 total number of species is usually plan<-. I ai mi-Mii. nm 

 Pax, Itii- lalnst ninnographer (Monographisclie I'bersii-lit 

 Ula r Hin Aiinii dcr Gattung Prinnila, Leipzig, lbt'8, 

 an. I Ml i:n-ln,s l!„t. Jahrbucher vol. 10), admits 145 



' Tin- ont.lnnr ITiniulas should bo protefted from 



Primulas all- m.istly perennial. Several rnlimal i;rnn|is 

 t useful plants for roc 



gardens. T 

 gardens in 

 gleet of th( 

 The polyani 

 flowering p 

 garden com 

 To the same 

 and the oxi 

 our gardens 

 gated by div 



ipiii 



! attention given to alpine 

 is the reason for the ne- 

 spring- flowering plants. (2) 

 uprising fully hardy spring- 

 inr culture under ordinary 

 i\ s popular in this country, 

 n irue cowslip (P.officinalis) 



the 



ely 



PRIMROSE PEERLESS. iV«jT(.s' 

 PRIMULA {Prinull 



biflorus. 



is, the "first in spring," was 

 : or more of the species). 

 Low herbs, mostly spring- 

 us salverform fls. in clusters 

 radical cluster of leaves, the 

 lilac, purple, yellow, white), 

 :sing the 5-toothed or 5-cleft 



their pure form. All are easily propa- 

 n, (3) Yellow-flowered or purple-flowered 

 verticillate -clustered outdoor species, of the P. im- 

 pvrialis and P. Japonica type, some of which are hardy 

 even in the northern states with some winter protection. 

 (4) Tlie true greenhouse species, represented by the old 

 P. Sinensis (Chinese Primrose), the more recent P. 

 obconica and the still more recent P. Forbesi. These 

 are Chinese species. Tbe colors are of the cyanic 

 series. (5) The auriculas of gardens, developed from 

 P. Auricula. In the auricula and cowslip groups hy- 

 brids are many, but elsewhere in the genus good hy- 

 brids seem to be few. 

 The hardy Primula 

 rockwork plants, to ' 

 habit, and love of co 

 ably suit them. The reader ' 



species that are suited to alpim- an. I ni.k ijai.lc ns sliouPl 

 consult Correvou's "Les Plaiitrs Alpnns ,i <l<' K.a-iiil- 

 les," Paris, 1895. For the prrs.iii i.ui|his,. ii,c writc-r 

 selects a list of twelve specit-s i-.i-ummnmii d by Solfe- 

 Leonard for alpine gardens in England l.lourn. Royal 

 Hort. 19, p. 52 (1895): 1. "The golden yellow P. Au- 

 ricula, which has the additional interest that it is cer- 

 tainly one of the original parents of on 



ire usually treated as alpine or 

 lich their small stature, tufted 

 partially shaded places admir- 



,s, P. 



1950. Polyanthi 



calyx; corolla with 5 spreading lobes 

 notched orretusc at tlic end nnd inor 

 at the base; stanmns ... .iHix.-.l i.. il.. . 

 1-loculed, with nnin\ ..i ml. s .,n an 

 undivided fllitiirm sixl.. ami a . n 

 flowers of some I'rinnllas am s|i,, 

 trimorphic. — tlic stiimins and pistils . 



. •,. .1 ; , ■ .. 1^1). -4. "If 



to match with P. vixens, i. var. viniti.f. take /'. 

 , var. major" {=P. Peyritsehii, Stein, but it is a 

 hybrid of P. Auricula and P. viseosa).-5-9. "So great 

 is the number of fine forms and hybrids of this well- 

 known P. riscosa that the next five of my items must 

 be taken from their ranks, viz.: P. ciliata (of gardens), 

 with a good blue-purple flower; P. ciliata, var. purpur- 

 ata, a brilliant red or crimson-purple: P. Balfouri, a 

 beautiful Scotch hybrid of a rare tone of color; P. Livil- 

 sayana, a scarce and fine hybrid from the same north- 

 ern gardens, I think; and P. ciliata, var. cocciiiea. of a 

 rare red shade."-10. P. specfabiUs, Tratt., P. Wulfoii- 

 ana, Schott, or P. Clusiana, Tauseh., all from the Alps. 

 These are considereil to be ff.rnis of ..m- siua-icns by 

 some writers, but Pax kirps tlmni ilistinnt. Tin y are 

 all members of the Auricula u'l-nup.- II. /'. iilaiir.sfiiis, 

 Mor. (P.cdhicina, Dtil.vl, nm- of tlm Auricula group. 

 Alps. -12, "That perhaps most satisfactory of all, for 



