A sclepiadecz A sclepias. 301 



green tinged with orange. Hoods of the coronet oblong, 

 bright orange-red, and more conspicuous than the petals. Seed- 

 vessel hoary, not prickly. A native of dry localities in North 

 America, producing its brilliant flowers nearly all the Summer. 



2. A. Cornuti, syn. A. Syrlaca. Milkweed or Silkweed. 

 A robust-growing leafy species from 3 to 4 feet high. Leaves 

 large, ovate or oblong, downy beneath, and distinctly petiolate. 

 Flowers fragrant, larger than in the preceding, dull purple ; 

 hoods of the crown ovate, with 2 lateral teeth. Seed-vessel 

 covered with soft prickles. A native of North America only, 

 the second name having been misapplied. 



The foregoing species are the only ones at all common in 

 gardens, but there are several others equally handsome and 

 effective where there is ample space for large subjects. A. 

 Dougldsii has purplish-lilac sweet-scented flowers ; A. incar- 

 ndta purple and flesh-coloured ; A. variegata purple and 

 white. 



2. PERlPLOCA. 



Twining shrubs with opposite glabrous leaves and axillary 

 cymose flowers. Corolla rotate, having 5 awned scales in the 

 throat; lobes spreading. Filaments not combined. Pollen- 

 masses granular, applied separately to the stigma. A small 

 genus, occurring in the South of Europe and tropical Asia 

 and Africa. The name is derived from TrcpnrXoKij, a coiling 

 round, in reference to the habit of some species. 



1. P. Grceca. A deciduous twiner with rather small ovate- 

 lanceolate leaves and purple-brown axillary clusters of flowers, 

 appearing in Summer. A very curious and interesting plant, 

 growing from 15 to 20 feet high. Native of Southern Europe. 



Physidnthus dlbicans is a showy white-flowered tender 

 climber from South America, occasionally seen in sheltered 

 localities. 



ORDER LXX. LOGANIACE^S. 



This is a small group agreeing with the Eubiacece or Cin- 

 chondcece in having opposite simple leaves and interpetiolar 

 stipules and other characters, but differing in the fruit being 

 superior. The Nux vomica and many other deadly poisons 

 are produced by members of this family. The species are nearly 

 all tropical. 



