ESCALLONIACEAE 507 



stigmas distinct or united. Capsule 3-5-celled, at maturity loculicidally dehiscent by 

 as many valves. Seeds very numerous, the membranous testa prolonged at the ends. 

 SYRINQA. MOCK ORANGE. 



Stigmas distinct. 



Flowers solitary or few, never more than five : bark of last year's shoots brown, exfoliating. 

 Pedicels and hypanthium glabrous. 



Base of the capsule attenuate to the pedicel, the point of union obscure. 

 Leaf-blades ovate or oval, the borders entire or with minute distant 



teeth : sepals acute. 1. P. inodorus. 



Leaf-blades ovate-lanceolate or elliptic, the borders with sharp remote 



teeth : sepals acuminate. 2. P. grandiflorua. 



Base of the capsule abruptly contracted, the pedicel sharply differentiated. 3. P. gtoriosus. 

 Pedicels, hypanthium and exterior surface of the sepals pubescent. 4. P. floridus. 



Flowers racemose, numerous : bark of last year's shoots gray or ochre-color, not 



exfoliating. 



Leaf-blades pubescent on the lower surface : hypanthium and sepals pubescent. 5. P. latifolius. 

 Leaf-blades glabrous or nearly so : hypanthium and exterior surface of the 



sepals glabrous. 6. P. intectus. 



Stigmas united. 7. P. hirmtus. 



1. Philadelphus inodorus L. A shrub 2-3 m. high, the bark of the shoots brown, 

 exfoliating. Leaf-blades ovate, broadly ovate or oval, acute at the apex, rounded or 

 slightly narrowed at the base, 3-10 cm. long, 1.5-5 cm. broad, glabrate or with short ap- 

 pressed hairs either scattered or more copious, especially on the lower surface, prominently 

 3-nerved, entire or with minute distant teeth : sepals acute : corolla 3-4 cm. wide. 



On banks of streams and moist woods, North Carolina to Mississippi and Tennessee. Spring. A 

 form, possibly specifically distinct, P. inodarus riripdsus Beadle, may be recognized by the thick covering 

 of appressed rather stiff hairs on the lower surface of the leaves and frequently on the exterior of 

 the sepals. 



2. Philadelphus grandiflorus Willd. A shrub 2-3 m. tall, the bark of the shoots 

 brown, exfoliating. Leaf-blades ovate-lanceolate or elliptic, acuminate, sharply dentate, 

 either rounded or narrowed at the base, 4-12 cm. long, 1.5-4 cm. broad, glabrate or with 

 short appressed pubescence, 3-nerved : sepals acuminate : corolla 4-5 cm. wide : capsule 

 attenuate to the pedicel. 



On banks of streams and moist rocky slopes, Virginia to Florida, mainly along the mountains. 

 Spring. P. laxm Schrad., similar to the last, but with much narrower leaf-blades more densely 

 appressed pubescent on the lower surface, and smaller and usually solitary flowers, is unknown to the 

 writer in a wild state, although apparently of eastern American origin. 



3. Philadelphus gloriosus Beadle. A shrub 2-3 m. high, the bark of the previous 

 season's growth dark brown, exfoliating. Leaf -blades ovate or elliptic, acute at the apex, 

 either rounded or narrowed at the base, 4-10 cm. long, 1.5-5 cm. broad, glabrate or with 

 short appressed hairs, remotely dentate, 3-nerved : hypanthium and sepals glabrous : corolla 

 3-4 cm. broad : stigmas distinct : capsules abruptly contracted at the base, about 1 cm. long. 



On rocky banks of the Coosa River, northwestern Georgia. Spring. 



4. Philadelphus floridus Beadle. A shrub 2-3 m. high, the bark of last year's 

 shoots dark brown, exfoliating. Leaf -blades oval or elliptic, acute, remotely toothed, 

 either rounded or narrowed at the base, 4-10 cm. long, 2-5 cm. broad, sparsely pubescent 

 on the lower surface, glabrate above, prominently 3-nerved : pedicels, hypanthium and exte- 

 rior surface of the acuminate sepals appressed pubescent : corolla 3-4 cm. broad : stigmas 

 not united. 



On rocky slopes and banks of streams, Floyd County, Georgia. Spring. 



5. Philadelphus latif olius Schrad. A shrub 2-3 m. high, the bark of the shoots 

 gray or yellowish, not exfoliating. Leaf-blades broadly ovate or elliptic, acute at the 

 apex, rounded or contracted at the base, 3-10 cm. long, 2-7 cm. wide, mostly dentate, 

 softly and densely pubescent on the lower surface, glabrate or glabrous above, 3-5-nerved : 

 flowers racemose, the lower pair axillary : pedicels, hypanthium and exterior of the sepals 

 pubescent : corolla 3-4 cm. wide : stigmas not united. 



On rocky banks of streams, especially near Nashville, Tennessee. Spring. P. pubescens Loisel., 

 resembling the last but with brown bark and more numerous flowers, the lower two or three pairs of 

 which are axillary, is unknown in a wild state, but usually regarded of eastern American origin. 



6. Philadelphus intectus Beadle. A shrub 2-3 m. tall, the bark of the shoots gray 

 or ochre-color, not exfoliating. Leaf-blades ovate, oval or elliptic, acute or acuminate at 

 the apex, either rounded or narrowed at the base, 3-12 cm. long, 1-5 cm. broad, glabrous 

 or glabrate on both surfaces, prominently 3-nerved, either entire or remotely dentate : 

 flowers racemose, the lower pair axillary : pedicels, hypanthium and exterior of the sepals 

 glabrous : corolla 3-4 cm. wide : stigmas distinct. 



On bluffs of the Cumberland River, below Nashville, Tennessee. Spring. 



7. Philadelphus hirsutus Nutt. A shrub 1-2.5 m. tall, the bark of the previous 

 season's growth brown, exfoliating. Leaf -blades ovate or ovate-acuminate, either rounded 



