COMPOSITAE 



899 



o ~"5o 

 Map 1978 



Vernonia altissima Nutt 



~~ Hi 

 Map 1979 



Vernonia fasciculata Michx 



6d. Lobelia spicata var. campanulata McVaugh. (Rhodora 38: 316. 

 1936.) This extremely local and widely distributed plant is found in dry, 

 open woods in Clark, Lagrange, and Lake Counties. Our Clark County 

 station is the southern limit of its range in the United States. 



Maine, n. Mich., n. Wis., and Minn., southw. to Pa., N. J., and Ind. 



280. COMPOSITAE Adans. Composite Family 



[The following key is adapted from the one found in Gray, Manual, 



ed. 7.] 



Corolla tubular in all of the perfect flowers, regularly 5 (rarely 3 or 4) -parted; 

 flowers ligulate only in the marginal or ray-flowers, which, when present, are 

 either pistillate only, or neutral (with neither stamens nor pistil); sap of plants 

 not milky SERIES I. Tubuliflorae. 



Corolla ligulate in all of the flowers of the head; flowers all perfect; sap of plants 

 milky; leaves alternate SERIES II. Liguliflorae. 



Series I. Tubuliflorae DC. 



A. Staminate and pistillate flowers in separate heads (rarely so in Cirsium) . 

 Pappus capillary. 



Leaves not prickly, entire. 



Basal leaves much larger than the cauline and differing from them in 



shape; plants usually less than 4 dm high 



8978. Antennaria, p. 950. 



Basal leaves lacking at flowering time or, if present, similar to the cauline 



ones in shape and size 8983. Anaphalis, p. 953. 



Leaves prickly, not entire; heads large 9462. Cirsium, p. 999. 



Pappus none. 



Pistillate heads 1-flowered, developing an obovoid achene armed with 4-8 



tubercles or straight spines 9146. Ambrosia, p. 960. 



Pistillate heads forming an oblong or oval bur covered with hooked or straight 



prickles 9148. Xanthium, p. 962. 



A. Staminate and pistillate flowers not in separate heads. 



B. Heads discoid, rays or ligulate flowers none or very inconspicuous; corollas all 

 tubular. 



