560 



guelder roses, and laburnums; and particularly valuable from iheir 

 thriving under the shade of trees, and forming a blockade against 

 low buildings, where persons have no objection to their strong 

 smell. 



2. PASSIFLORA C^RULEA. 



COMMON PASSION FLOWER. 



Tins genus contains plants of the herbaceous and shrubby flow- 

 ering kinds. ■ .• 



It belongs to the class and order Gynandrin l^entandria, fPentan- 

 dria TrigyniaJ (Monadelphia Pe7itaiidria,J and ranks in the natural 

 order of Cucurhitacea. 



The characters are: that the calyx is a five-parted perianthium, 

 flat, coloured : the corolla has five petals, semilanceolate, flat, blunt, 

 of the same size and form with the calyx: nectary a triple crown; the 

 outer longer, encircling the style within the petals, more contracted 

 above: the stamina have five awl-shaped filaments, fastened to a co- 

 lumn at the base of the germ, and united at bottom, spreading: 

 anthers incumbent, oblong, blunt: the pistillum is a roundish germ, 

 placed on the apex of a straight, cylindrical column: styles three, 

 thicker above, spreading: stigmas capitate: the pericarpium is a 

 fleshy berry, subovate, one-celled, pedicelled: the seeds very many, 

 ovale, arilled: receptacle of the seeds triple, growing longitudinally 

 to the rind of the pericarp. 



The species cultivated are: 1. P. ca;ridea, Common or Blue Pas- 

 sion-flower; 2. P. incarnata, Rose-coloured Passion-flower; 3. P. lutea. 

 Yellow Passion-flower; 4. P. serratifolia. Notch-leaved Passion- 

 flower; 5. P. maUformis, Apple-fruited Passion-flower; 6. P. qiia- 

 drangularis. Square-stalked Passion-flower; 7- P- alata. Wing-stalked 

 Passion-flower; 8, P. laurifoUa, Laurel-leaved Passion-flower, or 



