75 



^Pileostegia viburnoides. {G. C, 



1914, Ivi. 225, 238, f. 95 ; G. M. 1914, 



724.) Saxifragaceae. H. A shrub 



somewhat resembling Skimmia ja~ 



■ponica, with an inflorescence like 



that of an Aralia. Leaves obovate- 



oblong, about 2J in. long, acuminate, 



entire, coriaceous. Flowers small, 



white, globose in the bud stage. The 



corolla IS' pushed off as a little cap 



by the stamens^ which are the most 



conspicuous part of the flower. 

 Khasia Mountains, China, Japan, 



Formosa. (Hon. Vicary Gibbs.) 



^Pinguicula Reutheriana. {G. C. 



1914, Iv. 364; G, M. 1914, 434.) 

 Lentibulariaceae. H. A diminutive 

 plant, only 3 in. high when in flower. 

 Leaves oval, about 1^ in. long and 

 I in. broad, slightly incurved along 

 the margin, arranged in a rosette. 

 Flowering-stems erect. Flowers soli- 

 tary, pale rose-pink with deeper pink 

 lines and a violet-rose spur. Alps of 

 Dauphine. (G. Reuthe.) 



*Pinus pumila. {Bean, T. S S. ii. 

 176.) Coniferae. H. A close ally 

 of P. Cembra. It is a dwarf mostly 

 prostrate shrub, never more than 

 10 ft. high. Leaves in fives, 1^-2 in. 

 long, usually entire on the margins. 



Leaves usuallv 5- sometimes 3-lobed, 



C 



1 



ones 1^ in. long, orange-brown, 

 never opening. A re-introduction. 

 Eastern Asia. (H. Clinton Baker.) 



^Pinus yunnanensis. (nmv, T. dh S. 



ii. 193.) H. ? A tree ICO ft. high 

 in the wild state. Leaves in twos 

 or in threes, 6-9 in. long, slender, 

 much twisted in young specimens, 

 toothed on the margins, finely pointed. 

 Cones shortly stalked, 4-5 in. long, 

 2-3 in. broad before expanding, 

 brown. Western China and Eastern 

 Tibet. (Arnold Arboretum.) 



Pirocydonia, (i?. H. 1914, 27, ff. 



6-S.) Rosaceae. H, P, Danieli and 

 P. WinhUri are two forms of a graft 

 hybrid obtained by grafting Wil- 

 liams* Bon Chretien'^pear on the com- 

 mon quince. (St, Vincent College 

 Gardens, Rennes, France.) 



^'ttosporum pauciflorum. (7?e«n, 



^- «€• 6\ ii. 197.) Pittosporaceae. H. 

 An evergreen shrub 4-^ ft. higli. 

 Leaves in a cluster at the ends of 

 the shoots, obovate to oblanceolate, 

 entire, 3-5 in. long, }-li in. broad ; 

 petiole \ in. long or less. Flowers 

 fragrant, dull yellow, \i-\ in. long, 

 axillary, solitary or a few together 

 m racemes. Central China. (Kew.) 



Piatanus racemosa. {Beon. T, & S, 



11. 203.) Platanaceae. H. ? A tree 

 40-400 ft. high in the wild state. 



slightly cordate at the base, G-12 in. 

 broad and rather more in length . 

 thickly clothed beneath, especially 

 along the midrib and veins, with a 

 pale persistent down ; lobes reaching 

 half-way to the midrib or more, 

 pointed, shallowly often distantly 

 toothed ; petiole stout, 1-3 in. long. 

 Flower-heads globose, 2-7 on a pen- 

 dulous peduncle. California. (F. R. 

 S. Balfour.) 



Platycerium Cordreyi. {G. C. 1914, 



Iv. 363; G, M. 1914, 434.) Filices. 

 S. Garden hybrid between P, Veitchii 

 and P.ahicorjie. (H. B. May & Sons.) 



*Pleione pogonloides. (S. .1/. t. 8588; 



0, R. 1914, 108.) Orchidaceae. G. 

 A terrestrial herb 3-4 in. high. 

 Pseudobulbs ovoid, ^-f in. long, 

 1-leaved. Leaves elliptic-lanceolate, 

 2-6i in. long, f-li in. broad. Flower 

 terminal, showy, rosy red with a 

 whitish di?c; segments IHi in. long. 

 Central China. (Charlesworth & Co.) 



*PleurothaIlis Lankesteri. (K. B, 



1914, 210.) Orchidaceae. G. Differs 

 from the closely allied P. mynantha, 

 which it resembles in habit, by the 

 shape and colour of the Up. Flowers 

 minute, borne in fascicles below the 

 leaves, deep yellow, with the obovate- 

 oblong lip and the column dark 

 purple. Costa Rica, (Kew.) 



r 



*Polnsettia pulcherrima rosea. (G. 



C 1914, Ivi. 190, col. t.) Euphor- 

 biaceae. G. Bracts rosy pink. (H. 

 B. May & Sons.) {EuphoThia inil- 

 chcrrima, var.] 



Poinsettia pulcherrima Trebsti. (J/. 



a. Z. ml 19; /. of H. 1914, Ixyiu. 

 397 ) G A sport from the variety 

 alha. Bracts delicate salmon-pink, 

 the lowest somewhat shaded with 

 green. (A. Trebst. Merseburg. Ger- 

 many.) [Euphorbia puJrhemmn, var. J 



J 



♦Polystaohya Hislopif. (A'. B. 1914 



375.) Orchidaceae. S. Anepiphjtic 

 he?b. Pseudobulbs tufted ovof- 

 obloncT or fusiform-oblong, Ij-l* in- 

 long 3-4.1eaved. Leaves lanceolate- 

 ob on« 21-5 in. long. Peduncles 

 • terSal, ^about 5 in. lonf ew- 

 flowered. Sepals and Petals light 

 emerald -green, the former 0-6 Im^ 

 W and^he latter 4 hn long Lip 



3-loled, 4 lin. long, ^f'^.^'^^ 

 rose-coloured margin and a few rose 

 coloured veins anS pale purple spot.. 

 Rhodesia. (Kew.) 



P„„s.iohum . n;u„iu,m undulatum. 



{(7. C. 1914, Iv. 



