ORDER LXIX. LOBELIACE.'E. 411 



Genus XCIIL— SON'CHUS. L. 



(The Greek name.) 



Involucre many-leaved, imbricate, connivent at the summit. 

 Florets perfect. Receptacle pitted, naked or scabrous. Siignm 

 hispid. Pappus hairy. 



1. S. Carolinia'nus, (Willd.) {S. aspcr, Vill.) Stem erect, glabrous, 

 fistulous. Leaves lanceolate, acute, toothed, undulate, auriculate, 

 somewhat clasping at the base. Flowers in lateral and terminal um- 

 bels. Seed compressed, striate ; pappus sessile. — Yellow. 0. March 

 ■ — April Common, 1 — 3 feet. 



2. S. olera'ceus, (L.) Stein terete, fistulous, succulent, glabrous, 

 branching. Leaves oblong-lanceolate, amplexicaul, sinuate, pinnatifid, 

 segments acute, slightly toothed. Floioers in axillary umbels, with to- 

 mentose spots on the peduncles. Seed oblong, compressed, sulcate. — 

 Yellow. %. March—July. Common. Sow-thistle. 



3. S. macrophyl'lus. Stem erect. Leaves lyrate, pubescent, and 

 hispid on the under surface, cordate at the base, large. Flowers in pan- 

 icles. Peduncles h'lr&utc. — Blue. If. Aug. — Sept. In shaded, damp 

 soiLs. 4 — 7 feet. 



Order LXIX.— LOBELIA 'CE^E. {Lobelia Family.) 



Calyx 4 — 5-cleft. Corolla irregular, inserted into the calyx, 

 5-cleft. Stamens 5, inserted into the calyx, alternate Avith the 

 lobes of the corolla. Anthers cohering. Ovary 2 — 3-celled ; 

 ovules numerous. Styles simple. Stigma surrounded by a 

 cup-like fringe. Capsxde 2 — 3-celled, many-seeded, dehiscing 

 at the apex. Herbaceous plants, with alternate leaves. 



Genus I— LOBELIA. L. 5—1. 

 (In honor of Lobel, a French botanist.) 



Calyx 4 — 5-cleft. Corolla irregular, cleft on the upper side 

 nearly to the base. Stamens united into a tube. Stiyma 2- 

 lobed. Capsule sometimes attached to the calyx. Seeds mi- 

 nute, scabrous. 



1. L. Kal'mii, (L) Stetn erect, slender. Radical leaves spatulate, 

 ovate or nearly orbicular, ])ubescent; cauline leaves linear, nearly sub- 

 ulate. Flowers in terminal racemes, small, scattered, on short pedun- 

 cles. Calyx 4-cleft, with subulate segments. Corolla with a 3 cleft 

 border; the lateral segments subulate, reflexed, the middle segment 3- 

 cleft. Anthers cohering into a tube, villous at the summit. Sli(/ma 

 villous. Capsule 2-valved, 2-celled, surrounded by the calyx. — Blue. 

 If. May — Aug. Damp soils. Common. L. Kuttallii, Koein. 



2. L. PALLIDA, (Muhl.) (Spicata.) Stem slender, glabrous, sliglitly 

 angled. Leaves lanceolate, cuneate, denticulate, the upjjer ones .-mall, 

 the lower ones 2 inches long. I^lowcrs in racemes, remote. C<i'iix 

 small. Anthers exserted. — Blue. 2f. Through the summer. Damp 

 soils. 



