21 6 CUCURBITACEAE (SQUASH FAMILY) 



an akene, crowned with the persistent calyx lobes. W. E. (Gk. 

 dipsen = to thirst; because the leaf bases of some catch water.) 



Dipsacus sylvestris (Teasel) 



CUCURBITACEAE (SQUASH FAMILY) 



Herbs, vines, with tendrils, perennial. Leaves alternate, petioled, 

 palmately lobed; stipules none. Flowers racemose, monoecious, 

 white. Calyx limb campanulate, usually 5-lobed. Corolla rotate ; 

 limb deeply 5-lobed. Stamens 3, monadelphous. Style i, termi- 

 nal. Fruit fleshy, becoming dry, prickly, dehiscent at the summit; 

 Seeds, few, flat. W. E. (Gk. echinos = a hedgehog, kystis = a 

 bladder; referring to the prickly inflated fruit.) 



Echinocystis oregana (WILD CUCUMBER) 



CAMPANULACEAE (BELLFLOWER FAMILY) 



Herbs. Leaves alternate, simple; stipules none. Flowers regular, 

 solitary-axillary or racemose, white or blue or violet. Calyx 

 3~5-lobed. Corolla sympetalous, 5-lobed, rotate to campanulate. 

 Stamens 5, usually free from the corolla. Ovary inferior; style i. 

 Fruit a capsule, prismatic or terete, 2-5-celled. Seeds many, small. 



A. Stem leaves lanceolate or spatulate to linear, petioled or sessile, not clasping. 



B. Calyx lobes not over i cm. long; perennial; leaves sessile or petioled. 



CAMPANULA (p. 216) 



BB. Calyx lobes 2-4 cm. long; annual; leaves sessile. W. E. (Githago is 

 another genus; Gk. opsis = like.) Githopsis specularioides 



AA. Stem leaves ovate to orbicular, sessile, clasping; annual. 



C. Calyx lobes triangular-lanceolate, entire; corolla rotate; capsule opening by 

 lateral pores; seed lens-shaped. W. E. (L. speculum = a mirror; referring 

 to the corolla of a European species.) 



Specularia perfoliata (VENUS' LOOKING-GLASS) 



CC. Calyx lobes triangular-ovate, somewhat toothed; corolla open-campanulate; 

 capsule bursting irregularly; seed obscurely 3-angled. E. (Gk. heteros = 

 different, kodon = a bell; referring to the 2 forms of flowers.) 



Heterocodon rariflorum 



CAMPANULA (BELLFLOWER) 



Flowers white or blue or violet. Calyx tube hemispheric to prismatic. 

 Corolla campanulate. Ovary 3-5-celled; stigma 3~5-lobed. Capsule 

 crowned by the persistent calyx lobes. (Diminutive of L. campana = 

 a bell ; referring to the corolla.) 



A. Stem leaves ovate to lanceolate; corolla lobes spreading; style long-exserted. 

 B. Stems not clustered; leaves acuminate; pedicel longer than the flower. W. C. E. 



C. scouleri 



