CUCUBBITACEAE. 305 



Family 1. VALERIANACEAE Batsch. Valerian Family. 



Fruit 1-celled; persistent calyx-lobes becoming awn-like; tall herbs. 



1. Valeriaim. 

 Fniit .3-cellecl ; calyx-lobes minute or none ; low herbs. 2. Valerianella. 



1. VALERIANA L. Valerian. 

 1. Valeriana pauciflora Michx. M. p. 878. Moist soil. Spring. 



Lancaster— Millersville (Ca.) (Pr.), York Furnace (Cr.), Conestoga, A. 

 P. Garber (B. C). 



2. VALERIANELLA Poll. Corn-salad. 



Fruit flattened, twice as broad as thick. 1. V. Locusta. 



Fruit oblong-tetragonal or ovoid-tetragonal, grooved. 2. V. radiaia. 



Fruit globose or saucer-shaped. 3. V. Woodsiana. 



1. Valerianella Locusta (L.) Bettke. M. p. 879. Old fields. Spring. 



2. Valerianella radiata (L.) Dufr. M. p. 879. Low grounds. Spring. 



3. Valerianella Woodsiana (T. & G.) Walp. M. p. 880. Moist soil. 



Early summer. 

 P7iiladelphia—(P.) Buds— (P.). Lancaster— (P.). Dauphin— {P.). 

 3a. Valerianella Woodsiana patellaria (Sulliv.) A. Gray. M. p. 880. 

 Moist soil. Early summer. 

 Buds — Sellersville (Fr.). Lancaster — (P.). 



Family 2. DIPS AC AGE AE Liudl. Teasel Family. 

 -^ 1. DIPSACUS L. 



1. DiPSACUS sylvestris Huds. Wild Teasel. M. p. 880. Waste places. 

 Summer. 



Order 9. OAMPANULALES. 



Flowers not in involucrate heads ; juice mostly milky. 



Endosperm none; flowers monoecious or dioecious; vines. 



Fam. 1. Cucurbitaceae. 

 Endosperm present, fleshy ; flowers perfect. Fam. 2. Campanulaceae. 

 Flowers in involucrate heads. 



Flowers all expanded into rays (ligulate) ; juice milky. 



Fam. 3. Cichoriaceae. 

 Flowers all tubular, or the outer expanded into rays ; juice very rarely 

 milky. 

 Stamens distinct or nearly so. Fam. 4. Ambrosiaceae. 



Stamens united by their anthers into a tube around the style. 



Fam. 5. Compositae. 



Family 1. C JCURBITACEAE B. Juss. Gourd Family. 



Fruit dehiscent at the apex or bursting irregularly ; several-seeded. 



1. Micrampelis. 

 Fruit indehiscent, 1-seeded. 2. Sieyos. 



1. MICRAMPELIS Raf. 

 1. Micrampelis lobata (Michx.) Greene. Wi{d Balsam Apple. M. p. 883. 

 Along rivers and waste places. Summer. 



