ORDER LXIX. LOBELLACEJL 4:11 



Genus XCIIL— SON'CHUS. L. 

 (The Greek name.) 



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

 Florets perfect. Receptacle pitted, naked or scabrous. Stigma 

 hispid. Pappus hairy. 



1. S. Carolinia'nus, (Willd.) (S. asper, 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'oeus, (L.) Stem terete, fistulous, succulent, glabrous, 

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

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

 mcntose spots on the peduncles. Seed oblong, compressed, sulfate. — 

 Yellow. 0. March — July. Common. Sow-thistle. 



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

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

 icles. Peduncles Hirsute. — Blue. 2£. Aug. — Sept. In shaded, damp 

 soils. 4 — 7 feet. 



Order LXIX.— LOBELIA 'OEM. {Lobelia Family) 



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

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

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

 ovules numerous. - Styles simple. Stigma surrounded by a 

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

 at the apex. Herbaceous plants, with alternate leaves. 



Genus I— LOBE' LI A. 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. Stigma 2- 

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

 nute, scabrous. 



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

 ovate or nearly orbicular, pubescent ; 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. Stig?na 

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

 U. May — Aug. Damp soils. Common. L. Nuttallii, Kcem. 



2; L. pallida, (Muhl.) (Spicata.) Stem slender, glabrous, slightly- 

 angled. Leaves lanceolate, cuneate, denticulate, the upper ones small, 

 the lower ones 2 inches long. Flowers in racemes, remote. Calyx 

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

 •oils. 



