190 



ORDER I.XXXII. HYI>KOriTYLLACEJE. ORDER I.XXXVII. i,IMI\\- 



Ur, rarely irregular, the limb 8-toothed, often with a row of 

 Males in the throat Stamen.* 6, in- i;. -I "ii the corolla alter- 

 nately with its lobes. Ovary deeply 4-lobed, or at least se|..,ra- 

 ing into 4 portions, when mature. Style 1, usually central, 

 proceeding from base of the ovary, sometimes terminal. Fruit 

 consisting of 4 aehenio. 



A rather large order of mnclUginotu. emollient, never poisonous plant*. 

 Banco (Borage), fig. 27, Syuij.hytuin (Com/rty), snd llellotropluin (Itdio- 

 tropt\ are example*. 



tig. It 



GROUP VII. 

 ORDER LXXXII. Hydrophyllacese. 



Herbs. Leaves alternate, or the lower ones opposite, usually 

 lobed, or pinnatifid. Flowers ngnally in circinate racemes, or 

 unilateral spikes. Calyx 6-cleft, usually nppendaged at the 

 sinuses, persistent. Corolla 6-lobed, regular, with melliferous 

 scales or grooves near the base. Stamens 5, inserted on the base 

 of the corolla, alternate with its lobes. Anthers 2-celled. Ovary 

 free, 1 -celled. Style], bifid. Stigmas 2. Capsule invested with 

 the permanent calyx. Seeds few, crustaceous. 



A mull order of unimportant, chiefly N. American plant*, represented by 

 Hjrdropuyllum ( Wutrr-Lttif, Burr-Floictr). 



ORDER LXXXIII. Polemoniacew. 



Herbs. Leaves opposite, rarely alternate, simple or com- 

 pound. Calyx free from the ovary, 6-cleft, persistent Corolla 

 regular, with a S-lobed limb, convolute in iireflorntion. Stamens 

 6, insertr.1 mi the corolla, alternately with iu lobes, often un- 

 equal in length. Ovary :t-oelle.l. Style 1. Stigma trifid. Cap- 

 role 8-celled, 8-valved, loculicidal, the valves separating from the 

 8-angled axis, which bears the few, or many seeds. 



A wnall order eonaUtlng chiefly of N. American plant*. Phlox and Pole- 

 nvmlnm (Orett VaUHan), are example*. 



ORDER LXXXIV. Diapcnsiacete. 



Low, prostrate, evergreen undcr-shrubs. Leaves crowded, 

 heath-like. Flowen terminal and solitary. Sepals 6, distinct, 

 with 8 bract* at bate. Corolla regular, deeply 6-lobed, with the 

 lobe* imbricated in prell..rati"n. Stamens 6, inserted by their 

 pttaloid filaments on the corolla-tnl>e. Anthers 2-celled, with 

 transvente valves. Ovary 8-cclled, free. Style 1. Stigma 3- 

 lobeil. Capunle 8-valved, Seeds (mall, many. 



An order eOMWtnc of only two plant*, niapenil* T.apponlca, native of the 

 White VonnUlnv and Pyxldanlh.ni. fbtind talks PlnTharntna of N. Jeney. 



ORDER LXXX V. Cnuvnlvulni c.-r. 



. nr f-hrulis; cifien \villi it milk\ 

 nr climliing, rarely erect, I 

 Stipules none. Flowers often show;. 



less united at base, per ;,-ft nr 



entire, twisted and plaited in prell' -amens S, ii 



at the base of the corolla, alternate with its segment", \\li.n 

 lobed. Ovary 2 4, rarely 1 -celled, free from the calyx. Style 

 1, rarely more. Fruit a capsule, 2 1-vclle.l, oj.enini; 1.. 

 fragal dehiscence. Seeds few, large. 



A nnmeroni order of plants, very abundant In Uie tropics, and often distin- 

 guished by the beauty of their large Bowers. Their Jiili-w contain a resinous 

 purgative principle, especially developed In the roots of Convolvulus Jalap* of 

 Mexico, and 0. 8c*mmonla(5ixim0wniy), of the Levant Sometimes this prin- 

 ciple U present In so small quantities, that the large farinaceous root* become 

 valuable as articles of food, as In the C. Batatas, or Sweet Pi>latn. 



The suborder, Cnjcutlne, Is distinguished by Its leafless colored stems and 

 filiform, spirally colled embryo, destitute of cotyledons, and I* represented by 

 the Cnscuto (Dodder), fig. 8, Plate T. 



ORDER LXXXVI. Solanac. 



Herbs, or shrubby plants with a colorless juice. Leaves 

 alternate. Calyx free from the ovary, consisting of -I :> 

 ent sepals more <>r less united at bas^ Corolla regular, rarely 

 lightly imgular, limb 4 5-cleft, plaited in prnWati":. 

 mens as many as the corolla lobes, alternate with it* -.^m. nt- 

 Ovary 2, and rarely 4 or r,-e.-IIe,l, with a e, ntral |.l,n-eni:i. Fruit 

 a many-seeded capsule or berry. 



A large order distinguished usually by the dull lurid color of their flowers. 

 The hcrbafre and fruit arc usually pervaded by a powerful narcotic principle, 

 which renders tlunn often violently poisonous and alwayi Injurious. Their 

 active properties give to many of them Importance In a medicinal , 

 view. Such are the Henbane (llyotcyamtu nigir), the Belladonna ( 



n*> 



nnn), and the Bittersweet (ffntanum I>lfamara\ fig. 2' The dele- 

 trrions Tobaoco, ateo, belongs here. Tho tuber Is sometimes edible, as In the 

 Potato (Solanum fuoffvmm); and fmmetlmee. alv>, the fruit Is wholesome, as 

 In the Tomato (Lycoptrilcum), and Uie Egg-plant (Satanum .Volongnut). 



ORDER LXXX VII. Gcntianoccaa. 



Jlerlw, usually smooth, with n wntcry juice. Leaves usually 

 opposite, rarely 'alternate, radical or single. Flowers regular, 

 usually tenninnl or axillary, often showy. Calyx of 4 12 sepals, 



