CLASS III. OaDER, L 



35 



Collinso'nia. Calyx tubular, 3-lipped, 

 upper lip 3-toothed ; corolla funnel-form, 

 unequal, under lip many-cleft, capillary ; 

 one perfect seed, (horrie-balm.) 



Rosmari'nus. Corolla ringent, upper lip 

 2-parted ; filaments long, curved, simple, 

 with a tooth, (rosemary.) Ex. 



D. Corolla superior 

 CiRCii'A. Calyx 2-leavcd or 2-parted ; 

 corolla 2-pctalled ; cap.sule hispid, 2-celled, 

 not gaping ; cells 1 or 2-seeded, seeds ob- 

 long, (enchanter's nightshade.) 



ORDER II. .DYGYNIA. 



Anthoxan^'thum, Calyx of two, egg- 

 shaped, pointed, concave, chaffy scales, 1- 

 flowered ; corolla of two equal husks, 

 shorter than the calyx, awned on the back ; 

 an internal corolla or nectary, consisting 

 of two, egg-shaped, minute scales ; stam- 

 ens longer than the corolla ; anther oblong, 

 forked at both ends ; germ superior ; seed 

 1. (sweet vernal grass.) 



Ckyp'^ta. Peplis. Caly.'t 2-sepalled, 

 inferior ; corolla 2 or 3-petalled, closed ; 

 styles none ; stigmas 2 or 3, very minute ; 

 capsule 2 or 3-celled, 2 or Svalved ; cells 

 4 or 5-seeded ; seeds sub-cylindric, sti'iate, 

 incurved, (mud-purslane.) The corolla ap- 

 pears like a capsule toith an apertnrz at the 

 top, ichen examined without a lens. 



Erian'^thus. Glumes 2, valveo nearly 

 equal, villose at the base ; paleas 2, une- 

 qual; inner glume bearing a long nwu near 

 the summit. S. 



ORDER III, TRIGYNIA. 



, Pi'PER. Spadix simple and slendor, 

 calyx and corolla wanting. Fruit a berrj-, 

 globose, (pepper.) Ex. 



CLASS IIL TRIANDRIA. 



ORDER I. MONOGYNIA. 



A. Flowers superior. 



Tris. Calyx spatha, 2 or 3-valved ; co- 

 roUg. 6-parted, divisions alternately re- 

 flexed ; stigmas 3, petal-like ; style short ; 

 capsule 3-celled. (tlowei*-de-luce, iris or 

 flag.) Ex. 



Fe'dia. Calyx 3 to 6-toothed, perma- 

 nent; corolla tubular, 5-cleft or 5-parted; 

 nut or capsule 2 or 3-celled ; seed naked, 

 or crowned with a tooth. (Iamb-lettuce.) 



Dila'tris. Perianth superior, 6-parted, 

 segments unequal ; stamens 3 ; style de- 

 clining ; stigma minutely 3-lobed ; capsule 

 3-celled, truncated, many-seeded, (red- 

 root.) 



Plectri'tis. Calyx with the margin 

 straight, entire ; corolla with the tube short- 

 spurred at the base, gibbose before, limb 

 5-cleft,2-lipped; capsule 1-celled, 2-winged. 



Valerianei/'la. Calyx with the limb 

 toothed, persistent; corolla not spurred, 

 regular, .'S-lobed ; stigma sub-trifid ; capsule 

 3-ceiled, sul)-membranous, crowned with 

 the limb of the calyx, (wild Iamb-lettuce.) 



Gi.aoiu'lus. Spatha 2-valved ;• corolla 

 6-parted, two divisions much smaller, up- 

 per divisions broadest; style long and 



24* 



slender ; stigmas 3.; capsule triangular, 3 

 celled, many-seeded. 



Valeria'na. Corolla monopetaloui?, 5 

 cleft, horned at the base ; seed 1, crowned 

 with a feathery pappus. Ex. 



Cro'cus. Spatha radical; corolla tunnel- 

 form, with a loitg slender tube ; stigma 

 deep-gashed, crested. 



lx''iA. Spatha 2 or 3-valved, ovate, short, 

 corolla C-parted or G pctalled, sometimes 

 tubular; stamens str;i'glit or incurved; 

 stigmas sub-filiform, (blackbeny-lily.) 



Phyllac"tis. Involucrum 1-leaved, 

 sheathing; calyx marginal, minute ; corol- 

 la 3-cleft ; seed 1 ; styles and stamens ex- 

 sert. 



Apte'ria. Calyx ; corolla monopeta- 

 lous, wingless, bell-tubular, with the margin 

 6-toothed, alternately smaller ; capsule 1 

 celled, valveless ; seeds numerous and mi- 

 nute. 



Boerhaa'via. Calyx tubular, margin en- 

 tire ; corolla 1-petalled, campanulate, plait- 

 ed ; nut 1, invested by the permanent calyx, 

 naked or tubercled, ogrooved, obcouic 



Calyme'nia. See Allio'nia. 



B. Flowers inferior. 



Commeli'na. Sheath cordate; calyx 3- 

 leaved ; corolla 3-petalled, sub-equal ; 3 

 barren filaments — sometimes the whole 6 

 filaments bear anthers; stigma simple; 

 nectaries 3, cross-form, inserted on peculiar 

 filaments; capsule sub-globose, 3-celled, 

 cells 2-seeded or empty, (day-flower.) 



Schol'^lera. Spatha 1-flowered; corolla 

 long-tubular, border 6-parted, with the 

 stamens on the divisions; filaments equal 



Heteranthe'ra. Calyx a 2 or 3-flow 

 ered spatha ; corolla dull-colored, membra 

 naceous, with a long slender tube, bordei 

 4 to 6-parted ; anthers 3, 2 of them attached 

 to the divisions of the corolla, the other at- 

 tached to the top of the style, and much 

 larger; stigma sub-capitate, 1-sided; cap 

 sule 3 celled, many-seeded, dehiscent at 

 the angles. 2^his s^emis is interviediate 

 hetu-cen tlie classes 't^riandria and Gyyian- 

 dria. 



Sye'na. Calyx 3-leaved ; corolla 3-petal- 

 led ; anthers oblong; capsule 1-valved, 3 

 celled. S. 



StiVulici'da. Calyx 5-parted; corolla 

 5-petalled ; stigmas 3 ; capsule 1-celled, 3- 

 valvcd. S. 



Polycne'^ium. Calyx 3-sepalled ; petak 

 calyx-like ; capsule 1-secded, membrana 

 ceous, not opening, covered by the calyx 

 Stamens vary from 1 to 5. S. 



C. Floicers with glumes. Sedges. 



DuLi'cHiuM. Spikes sub-raccmed, axil 

 laiy ; spikelets linear-lanceolate, sub com 

 pressed; glumes distichus, sheathing; style 

 very long, bifid, base persistent ; na 

 bristled at the base. 



Cype'rus. Scales imbricated 2-waya 

 ovary without bristles; spikelets com 

 pressed, distinct. 



Limnet"is. Glume 2 vp'vel, c ^m7rc"''e-'. 

 one valve keeled and loi.gci* tlian ihe other 



