PHILADELPHIA 135 



at the margins and near the points outside. Fruit top-shaped, ^ in. long, 

 gradually tapered to the stalk. 



Native of the south-eastern United States; introduced in 1811. It is a 

 vigorous and beautiful mock orange, useful in flowering later than most species, 

 usually into July. It is allied to P. inodorus (q.v.). P. LAXUS, Schrader, is 

 now usually regarded as a variety of P. grandiflorus, differing in its narrower 

 leaves, more densely covered beneath with appressed down. Flowers small, 

 i to \\ ins. across, often solitary, not scented. (P. grandiflorus var. laxus, 

 Torrcy.} 



P. HIRSUTUS, Nuttall. 



(Bot. Mag., t. 5334.) 



A shrub up to 6 or 10 ft. high, of thin habit ; young shoots covered with 

 pale bristles ; axillary buds not hidden by base of leaf-stalk. Leaves three- 

 nerved, ovate (broadly so on the barren shoots), rounded or tapered at the 

 base, taper-pointed ; margins set with irregular, coarse, outstanding teeth ; 



PHILADELPHUS INCANUS. 



f to 3 ins. long, \ to if ins. wide ; downy and dull green above, shaggy 

 beneath ; stalk \ in. or less in length. Flowers I to i| ins. across, often 

 solitary, sometimes in threes on lateral twigs I in. or less long, bearing as 

 a rule one pair of leaves. Petals creamy white ; calyx shaggy, with triangular 

 lobes ; stigmas united. 



Native of the south-eastern United States ; introduced in 1820. Although 

 one of the most easily recognised of a confusing genus, this species is one 

 of the least attractive. Its flowers are scentless, and comparatively few. 

 Its distinguishing marks are its exposed axillary buds, its short one- or three- 

 flowered twigs, its dull shaggy leaves, etc., and united stigmas. 



P. INCANUS, Koehne. 



A shrub up to 6 ft. or more high ; young shoots more or less hairy. 

 Leaves ovate or oval, broadly wedge-shaped or almost rounded at the base, 

 slender-pointed, finely toothed ; 2^ to 4 ins. long, i to 2^ ins. wide on 

 the barren shoots; those of the" flowering twigs mostly I to 2 ins. long; 



