ao CLASS III. ORDER L 



flowered : corol glume 2-valved, acuminate, awn- 

 cd : seed 1. 4. 10 — odoratum, (sweet vernal grass) 

 spiked ; floret larger than awn. 11 — An American 

 variety, altissimum, is larger and of a darker green, 



Ives. 



* Holcus, Festuca, Saccharum. 



CLASS III. TRIANDRIA. 

 Order I. Monogynia. 



A. Floivers sufierior* 



Valeriana. Calyx o, or with an extremely 

 small margin: corol 1-petalled, 5 cleft, base gib- 

 bous: seed 1 : stamens, 1, 2, 3 and 4, exsert. 48. 

 56 — ^/zawcf/^ora, (valerian) root-leaves pinnate, stem- 

 leaves ternate. 11 » r. 



Fedia. Calyx 3 to 6 -toothed : corol 5-parted: 

 nut 2 or 3-celled : seed naked, or crowned with a 

 tooth. 48. 56 — radiatay (lamb lettuce) leaves spatu- 

 late. ©. b. 



Iris. Calyx, spathe 2-valved : corol 6-parted, 

 divisions alternately reflected : stigmas petal-like, 

 6. 18. — /i2^?m/a, (dwarf flower-de-luce) scape short- 

 er than the leaves. IJ.. b. — virginica, (wild iris or 

 flag) stem 2-cornered, with alternate leaves. 2/.y.b. 

 — gracilis (Boston iris) petals beardless, inner ones 

 erect: leaves linear, flat: germ triangular, twice 

 groved on each side. Bigelow. This plant is 

 very abundant near New-Haven as well as Boston. 



B. Flowers inferior, 



CoMMELiNA. Calyx, spathe cordate: corol 6- 

 petalled : nectaries 3, cross-form, inserted on pe- 

 culiar filaments : capsule sub-globose, 3-celled. 6. 

 13 — co?nmunis (day-flower) stem creeping, ©.b. e. 



Leptanthus. Calyx, spathe 1-flowered: corol 

 long-tubular j border 6-parted ^Yith the stamens on 



