A roc Y N A CEAE 133 



fording the poison strychnine: the following attractive climber 

 is medicinal. 



GELSEMIUM. Carolina Jessamine. 



Evergreen twining woody plants with slender twigs some- 

 what square at the nodes; roundish spongy or excavated white 

 pith; opposite elevated crescent-shaped or half-round leaf -scars 

 with a large bundle-trace; small stipule-scars; sessile buds 

 with several pairs of pointed scales; rather small short-petioled 

 entire leaves; openly funnel-shaped rather large fragrant yel- 

 low gamopetalous perfect flowers solitary on short scaly axil- 

 lary shoots; moderate thin-walled capsules; and relatively 

 large winged seeds. 

 Leaves lanceolate, very acute. G. sempervirens. 



BUDDLEIA. 



Deciduous half-shrubs with soft wood with minute diffused 

 ducts and fine medullary rays; slender squarish twigs; 4-sided 

 homogeneous pale pith; opposite low half-round or triangular 

 leaf-scars with 1 bundle-trace; narrow stipule-scars; sessile 

 ovoid acute somewhat spreading superposed buds with usually 

 2 exposed scales; simple toothed short-stalked moderate 

 leaves; small mostly lavender perfect funnel-shaped gamopet- 

 alous flowers in clusters ending the branches; and small ovoid 

 capsules with minute seeds. 



1. Branches rather erect. 2. 

 Branches spreading or drooping. 3. 



2. Flower clusters straight. B. Lindleyana. 

 Flower clusters drooping. X B. intermedia insignis. 



3. Leaves white- or yellow-tomentose beneath. B. Davidii. 

 Leaves glabrate or finely gray-tomentose. 4. 



4. Flowers lilac, in clusters scarcely 20 cm. long. B. japonica. 

 Flowers violet, in longer clusters (25-30 cm.). XB. intermedia. 



Family ASCLEPIADACEAE. Milkweed Family. 

 A moderate widespread family, members of which yield 

 African India rubber: one Vinca is largely used in bedding 

 and another for window-boxes. 



