THE WILLOWS OF OHIO. 263 



Synoptic Table of Ohio Willows. 



Stamens 3 or more, filaments pubescent at base, catkins appear- 

 ing on leafv branches. Polyandrae. 

 Trees with rough, flaky, brown bark and brown twigs. 



Amygdaleneae . 

 Capsules short pedicelled, short globose conic, forming dense 

 thin catkins; leaves green on both sides, glabrous, pri- 

 maries distant, very line net veined, with a marginal 

 running nearly to the base of the leaf, linear-lanceolate 

 when mature, often falcate; of very scragly growth. 

 seldom upright; frequenting streams. 5. nigra. 



Capsules long pedicelled, short conic, in lax aments; leaves 

 sometimes 15 cm. long, typically oblong with straight 

 sides, glaucous beneath, generally hairy, primaries 

 ascending, but scarcely forming a marginal; sprawling 

 shrub or straggling tree; southern, river banks. 



S. Longipes. 



Capsules long pedicelled, long conic, forming large loi 



catkins; leaves glaucous beneath, glabrous, primaries 



close, reticulation not so fine, marginal seldom running 



below the middle of the blade, broadly lanceolate, 



petiole often red; an elegant shapely tree; northern, 



] >rcfcrs swam] is. >. amygdahides. 



Shrub, twigs shining brown, scales often dentate, capsules 



large and glossy, aments thick; leaves ovate-lanceolate, 



often very long attenuate, sub-coriaceous, -lossy above, 



light green, glands very prominent, especially on stipules; 



mostly in rocky wet places, northern. S. lucida. 



Stamens less than .">. 



Stamens 2. Diandrae. 



Filaments pubescent, catkins appearing with the leaves, 

 on leafy branches, except early flowers of >'. interior, 

 ales nearly as long as the ovularies at anthesis. 

 Large trees with barkroughbuf not flaky, leaves glaucous 

 below, capsules glabrous, short pedicelled. Fra 

 Not weeping, primaries and secondaries close and 

 regular. 

 Bark greenish, leaves glabrous, rather coar er 



rate, and trongly glandular; capsules long 

 i nt -, remaining green. S. i igilis. 



Bark yellowish, leaves pubescent at least when 

 young, fine serrate; cap ules short conic, turning 

 yellow m frail S. al 



hark golden yellow, leaves glabrous in a. 



S alba viU .'. 



