SOLANACEAE 



15 



Ipomora 

 Convolvulus 



( h n u'.a 



I. purpurea 



1. hederdcea 



I. batatas: sweet potato 



I. cocci in a 



I. bona-nox: moon/lower 



C. .upturn: hedge bind- 

 weed 



C. arvinsxs: field bind- 

 weed 



C. tricolor 



Leaves nol pinnately-] orolla funnel-form 



b. Stigmas 1. lint 

 Sterna leaflets, orange or yellow ; flowen tiny 



lamoclit — Cypress Vine 

 (Tin- m- all hi name) 

 tegmenta linear; Bowers single, red Q- vulgaris 



[pom6ea — Morning Glory, Sweet Potato 



1. Flowers opening in the morning 



orolla funnel form, 3-7 cm. wide, never scarlet-yellow 

 I i * Leaves i ordal m hairy 



Leaves angled to deeply lobed 

 Plant hairy 

 <l>t Plant smooth 

 b. Corolla salver form, 12 cm. wide, scarlet yellow 



2. Flowera opening at night; corolla white, 10-15 cm. wide 



Convolvulus— Bindweed 



i I. at convolve to twine, from the habit) 



1. Corolla while to rose; weeds 



a. Calyx enclosed in 2 leafy bracts; flowers 4-5 cm. long 



b. Calyx without leafy bracts; flowers 2 cm. long 



2. Corolla blue, with white throat and yellow tube; bushy herb, cultivated 



Cuscuta — Dodder 



(Of uncertain origin and meaning) 



1. Sepals separate 



a. Styles as long as the ovary 



b. Styles 2-3 times as long as the ovary C. compacta 



2. Sepals united C. glomcrdta 



a. Flowers sessile C. polygonorum 



b. Flowers stalked C. Gronovii 



Solanaceae — Potato Family 



Herbs or shrubs, with alternate, usually strong-scented leaves; sepals ?, united, petals 5, united, 

 ovary usually 2-celled, sometimes 3-5-celled, stigma 1, sometimes 2-lobed, fruit a berry or capsule; 

 flower syncarpous, sympetalous, hypogynous, regular or sometimes irregular. 



1. Shrub, often spiny, with green-purple flowers and red berries 



2. Herbs Lycium 



a. Corolla wheel-shaped or cup-shaped, more or less flat 



(1) Calyx bladdery, inflated in fruit Physalis 



(2) Calyx not bladdery 



(a) Filaments much longer than the anihers Capsicum 



(b) Filaments not longer, usually shorter than the anthers. 



x. Anthers united at the tip ; flower yellow Lycopcrsicum 



y. Anthers not united; flower not yellow, except in one spmy species Solatium 



b. Corolla tubular to funnelform or salverform 



(1) Fruit spiny; flowers long tubular, solitary Datura 



(2) Fruit not spiny 



(a) Fruit a purple berry ; corolla long bell-shaped Atropa 



(b) Fruit a capsule 



x. Calyx enclosing the pod 



(x) Calyx with a spreading net-like border in fruit II yoscyamus 



(y) Calyx bell-shaped, without a spreading border Xicotiatia 



y. Calyx not enclosing the pod Petunia 



