LOBELIACEAE. 



VOL. III. 



13. Lobelia Nuttallii R. & S. Nuttall's Lo- 

 belia. Fig. 4040. 



Lobelia gracilis Nutt. Gen. 2: 77. 1818. Not Andr. 

 Lobelia Nuttallii R. & S. Syst. 5 : 39. 1819. 



Annual, or perhaps biennial, glabrous throughout, 

 or puberulent below; stem weak, usually reclining, 

 very slender, loosely branched, at least when old, 

 i-3 long. Basal leaves spatulate to oval, obtuse, 

 mostly petioled, 6"-i2" long, slightly repand, or en- 

 tire; stem leaves distant, linear, linear-oblong, or 

 slightly spatulate, longer and narrower, entire or 

 sparingly glandular-denticulate; flowers 2i"-4" long, 

 pale blue, loosely racemose ; bracts linear or the 

 upper subulate; pedicels filiform, 2"-^" long, naked, 

 or minutely 2-bracteolate near the base ; calyx-lobes 

 subulate, longer than the depressed-hemispheric 

 strongly ribbed tube, the sinuses unappendaged ; cap- 

 sule depressed-globose, half-inferior, about i" long. 



In sandy soil, Long Island to Pennsylvania, Florida 

 and Georgia. June-Sept. 



14. Lobelia Canbyi A. Gray. Canby's Lo- 

 belia. Fig. 4041. 



Lobelia Canbyi A. Gray, Man. Ed. 5, 284. 1867. 



Annual, slightly puberulent, usually glabrous ; stem 

 erect, slender, paniculately branched, or simple, 2-3 

 high. Stem leaves linear or linear-oblong, i'-ii' 

 long, J"-i4" wide, the lower obtuse, sometimes 

 slightly repand-denticulate, the upper acute, nar- 

 rower, entire; flowers racemose, blue, 4"-5i" long; 

 lower bracts linear, the upper subulate ; pedicels 

 erect or ascending, naked, filiform, i"-3" long; 

 calyx-lobes linear-subulate, glandular-denticulate, 

 equalling or somewhat longer than the narrowly 

 turbinate tube, mostly shorter than the tube of the 

 corolla; capsule oblong-turbinate, 2" long, shorter 

 than the calyx-tube. 



Swamps, New Jersey to South Carolina. July-Sept. 



Family 44. CICHORIACEAE Reichenb. Fl. Excurs. 248. 1831. 



CHICORY FAMILY. 



Herbs (two Pacific Island genera trees), almost always with milky, acrid or 

 bitter juice, alternate or basal leaves, and yellow, rarely pink, blue purple or white 

 flowers in involucrate heads (anthodia). Bracts of the involucre in i to several 

 series. Receptacle of the head flat or flattish, naked, scaly (paleaceous), smooth, 

 pitted, or honeycombed. Flowers all alike (heads homogamous), perfect. Calyx- 

 tube completely adnate to the ovary, its limb (pappus) of scales, or simple or 

 plumose bristles, or both, or wanting. Corolla gamopetalous, with a short or long 

 tube, and a strap-shaped (ligulate) usually 5-toothed limb (ray). Anthers con- 

 nate into a tube around the style, the sacs sagittate or auricled at the base, not 

 tailed, usually appendaged at the summit, the simple pollen-grains usually 1 2-sided. 

 Ovary i-celled; ovule i, anatropous; style very slender, 2-cleft, or 2-lobed, the 

 lobes minutely papillose. Fruit an achene. Seed erect ; endosperm none ; radicle 

 narrower than the cotyledons. 



About 70 genera and 1500 species, of wide geographic distribution. The family is also known 

 as LIGULIFLORAE, and is often regarded as a tribe of the COMPOSITAE. 



* Pappus of scales, or of scales and bristles, or none. 



Flowers blue or white ; pappus of blunt scales. i. Cichorium. 



Flowers yellow. 



Bracts of the involucre membranous, or herbaceous. 



Pappus none ; achenes 2o-3o-nerved. 2. Lapsana. 



Pappus none; achenes 8-io-ribbed. 3. Serinea. 



