ORDER LXXXV. CONVOLVULACfcfi MORNING-GLORY-THIUK. ORDER LXXXV1. SOLANACRAS. 



1. G. tricolor. Three-colored Qilia. 



Stem erect, nearly smooth ; leaves alternate, twice and thrice ptnnatlfld ; 

 segments narrowly-linear ; flowers 8 6 together, tn cymes, arranged In panicles, 

 bneUess; corolla S S times as long as the calyx, of S colon ; the limb palc- 

 Wue, tinged with pink; the throat purple; the tuba yellow, very short, in- 

 cluded In the calyx. An elegant garden annual, about a foot high. 



8. POLEM&NIUM. 



Calyx campanula!?, 5-cleft Corolla rotate-campannl 

 lobed, erect ; tube very abort Stamens equally inserted at tie 

 summit of the corolla tube. Filaments furnished with hairy ap- 

 pendage* at barn. Cells of 'the capsule few, many -seeded. Per. 



1. P. copruleum. Greek Valerian. 



Stems stout, clustered, smooth, simple, erect, hollow; leaves mostly radical, 

 alternate. In long, channelled petioles, plnnately parted Into 11 17 divisions; 

 segments sessile, ovate-lanceolate, nearly opposite, acuminate ; odd one lanceo- 

 late ; flowers erect, In a terminal, corymbose panicle ; calyx as long as the co- 

 rolla-tobe; corolla blue, rather large. An elegant garden plant, 12 ft high, 

 common In cultivation. Junf. 



ORDER LXXXV. Convolvulacese. Morning- 

 glory-tribe. 



SYNOPSIS OF THE GENERA. 



SUBORDER I. Convolvftleoe. 



Seeds with large cotyledons. Herbaceous, usually climbing plants with 

 green foliage. 



1. CosvoLvctns. Calyx wlthont bracts at base. Stamens Included. 



9. CiLTSTioiA. Calyx with 2 large, leafy bracts at base. 



& QoixoouT. Sepals 5, usually mncronate. Stamens exsert 



"ORDER II. Cuscntili' 



Seeds without cotyledons. Twining, parasitic plants, destitute of green 

 herbage, all Included In 4. CcscdrA. 



1. CONV6LVULTJS. 



Calyx 5-parted, naked. Corolla campannlate, funnel-form; 

 limb with 5 plaits, and the border entire, or 5-lobed. Stamens 

 iiiolii'le.l in the corolla, rarely slightly longer than the limb. Style 

 1, often 2-cleft at apex. Capsule 2 t-cellcd,4 6-sceded. 



1. C. purpOlrens. Common Morning-glory. 



Stem twining, rough with reflexed hairs; leaves cordate, entire; peduncles 

 elongated, t 8-flowered ; pedicels thickened ; sepals hispid, ovate-lanceolate, 

 acute ; corolla funnel-form, large, 2' long, with a spreading, entire border ; color 

 varying from dark purple to pale flesh-color, In each case striped with various 

 shades. A common climber, cultivated every where, and sometimes springing 

 np spontaneously around houses and gardens. The flowers open at sunrise and 

 close early In the forenoon. JanfS'jt. An. 



2. C. BatAtas. Sweet Potato. 



Stem terete, prostrate and creeping, rarely twining, hispid ; leaves cordate- 

 hastate, angular, 5-velned, nearly or quite smooth ; flowers large, purple or 

 white. In long peduocled fascicles ; sepals lanceolate, acuminate. The common 

 Sweet Potato cultivated largely In the Southern and Middle States. The tubers 

 are thickened portions of Its creeping rhlioma, or thickened off-shoots from It 



2. CALTSTtGIA. 



Calyx 5-parted, included in 2 large, leafy bracts. Corolla 

 funnel-form, varying to campanulate, with & plaits or fold*; tli- 

 limb entire or obscurely 6-lobed. Stamens nearly equal, shorter 

 than the limb. Style'l. Stigma* 2. Ovary imperfectly 24- 

 celled. Capsule 1-celled, 4-seedcd. Per. 



1. C. Sepium. Wild Morning-glory. 



Htetn twining, mostly smooth; leaves sagittate, acuminate; lobes truncate, 

 and often toothed at base ; peduncles sharply 4-aagled, 1 -flowered ; bracts cor- 

 date, much longer than the concealed calyx ; flowers largo, 2' long, white, 

 varying to pale rose-color, opening before sunrise and closing early In the day, 

 except In dandy weather. A common, rank climber, In low, damp thicket*. 

 1 510 ft. long. A variety occurs on sandy shores, with prostrate, not 

 . more or less pubescent stems. Jan* July Prr. 



a Q0AMOCLIT. 



Sepal* 6, mostly mucronaU. Corolla tubular ovlimlrie. Sta 

 men* exsert. Style 1. Stigma capitate, 2-lobed. ' Ovary -l-i-oll 

 cd ; cells 1 -seeded. An. 



I. Q. vulgiiris. vss Vine. 



Smooth; stem very slender, twining; leaves deeply praaatifld ; segments 

 linear, parallel, acute ; peduncles 1 -flowered ; flowers small, brilliant, scarlet, 

 varying to crimson and rose-color; sepals ovate-lanceolate. An extrn 

 llcate and beautiful plant, native In the South, frequent In cultivation. July 

 Aug. 



4. CUSCtJTA. 



Calyx 5, rarely 4-clefL Corolla globose-campanula to ; border 

 spreading, S, rarely 4-cleft Stamens 6, rarely 4, inserted int.- th. 

 tube of the corolla with a scale-like appendage at base. Stigmas 

 2. Capsule 2-cclled ; cella 2-seeded. An. 



1. C. Gronbvii. Dodder. 



Plant leafless, parasitic, destitute of all verdure; stem filiform. orange-yel- 

 low; flowers sessile, In dense clusters, white; corolla campannlate, with. Tin..- 

 at the base of the globose capsule ; scales of the stamens large and much fring- 

 ed. An exceedingly delicate, parasitic vine, destitute of all green color. The 

 seed germinates In the soil, and at first the plant draws thence its whole suste- 

 nance, but afterwards, climbing over other plants it supports itself from their 

 juices, which It absorbs by .-cans of little radicles, while It withers away at 

 base, and soon loses all direct oc vmnnlcation with the ground, and becomes 

 entirely parasitic. The yellowish-white flowers grow in large, dense clusters, 

 which are sometimes found alone, the stems having entirely withered awsy. 

 The stem twines from right to left. JulyStp. 



ORDER LX XXVI. Solandcese. PotaMril*. 



SYNOPSIS OF TUB GEXEKA. 



Corolla with a proper tube. 



1. I'lm'-MA. Calyx-tube short; limb with 6 leafy lobes. Corolla salver 

 form, with 6 unequal lobes. 



2. NICOTIAN*. Calyx tubular. Corolla funnel-form, with B equal lobe*. 

 Capsule not prickly. 



& DAT^EA. Calyx tubular, Inflated. Corolla funnel-form, 5-anglcd, scarcely 

 lobed. Fruit prickly. 



10. LYCICM. Calyx short Corolla tubular, closed at the throat by the 

 bearded filaments. Stamens exsert Trailing or climbing shrubs. 



** Corolla -with a vrry abort nii.i . or none mall. 



4. NIOAHBEA. Calyx Deleft, with 6 compressed angles, enlarged and blad- 

 der-like In fruit, inclosing the 8-6-celled berry. Corolla campanulate. blue. 



6. I'HTSAUS. Calyx Inflated after flowering, Inclosing the 2-celled berry. 

 Corolla rotate-campanulate, yellowish. 



6. CApsicrK. Corolla rotate. Capsule 2 S-celIe4, dry and leathery. 



7. SOLAKDII. Corolla rotate. Berries 2-celled. 



5. LToopKESicm. Corolla rotate. Berries 8 -celled. 

 9. ATKOFA. Corolla campanulate. Berry 4-oclled. 



1. PETUNIA. 



Calyx with a short tube and a 5-clcft leafv limb. Corolla salver- 

 form; tube cylindric ; limb in 5 unequal, ilat, folded lobe* 

 mens 5, unequal, included, inserted into the middle of tin- c-i>rlln 

 tube. Capsule 2-valved. 



1. P. violacea. Purple Petunia. 



Stem weak, hairy, viscid ; leave* broad-ovate, acute, on short, winged peti- 

 oles, entire ; peduncles axillary, solitary, as long as the leaves, and scarcely 

 longer than the swelling tube of the corolla; sepals obtuse ; corolla-limb bright 

 purple, divided Into 5 unequal, rounded, acute lobes, of which the uppermost ll 

 smallest A pretty plant, quite common la cultivation. Stems trailing or climb 

 Ing, 2 i ft. long. An-orbim. July tOlfroA 



2. P. 61bs. White Petunia. 



Stem weak, hairy, viscid ; leaves ovate, acute, upper ones sessile; flowen 

 axillary, solitary, greenish-white, fragrant; corolla-tube scarcely expanded at 

 top, 2 a times as long as the obtuse sepals, tho limb flat and spreadhi 

 tlngulshed from the last by the stouter habit, more slender corolla-tube, and Its 

 white flowers, the color of which seems to be constant It Is frequently consi- 

 dered a variety of the last 



1 NICOTIANA. 



Calyx urn-shaped, 6-cleft. Corolla funnel-form, or salver-form, 

 regular; liml> plnit<-,l. .vlolx-d. Stigma capitate. CapsuU 2 

 celled, 2 4-vaIved. Sw.l* minute. An. 



