130 A GARDEN FLORA 
PASSIFLORA. Passifloracese. 
*P. coerulea. S. Brazil. 
* „ var. Eynsford Gem. 
PAULOWNIA. Scrophulariaceae. 
P. Fargesii. Szechuen. 
Height 13 feet. Planted in the Top Garden, 
near the Quarry, 1911. 
P. imperialis. China. 
Syn. P. tomentosa. 
PAVIA. See iESCULUS. 
PELARGONIUM. Geraniaceae. 
fMany garden varieties. 
PENN ANT IA. Olacineae. 
fP. corymbosa. New Zealand. 
Syn. P. odorata. 
PENTAPTERYGIUM. Vacciniaceae. 
fP. rugosum. Himalaya. 
|P. serpens. Himalaya. 
A graceful shrub with pendant branches, growing 
in the Shrub House. It prefers a moist atmosphere, 
though it does not require heat in winter. The 
flowers are borne along the under sides of the 
branches. 
PENTSTEMON. Beard Tongue. Scrophulariaceae. 
*P. campanulatus. N. America. 
„ Many garden varieties. 
P. heterophyllus. W. North America. 
PERAPHYLLUM. Rosaceae. 
P. ramosissimum. W. North America. 
Though the flowers individually are beautiful, 
the plant, on the whole, does not gTow happily 
with us. 
