BOTANY. 



several segments, but erroneously. So 

 that this last section should rather be 

 characterised as having- two or more co- 

 tyledons. 



The classes of Jussieu's method are fif- 

 teen, and comprise in all an hundred or- 

 ders. These classes have no appropriate 

 names, but are distinguished by numbers, 

 with a short definition of the essential 

 character. The orders, except those of 

 the first class, are for the most part named 

 after some principal genus belonging 1 to 

 each. It is to be observed, rhat, with re- 

 spect to the cotyledons, there are some 

 inaccuracies in the terms used, for many 

 of the supposed Monocotyledones are 

 now known to have no cotyledon at all, 

 and what has been so called in the rest 

 is more properly an albumen. 



Class I. Acotyledones. The orders of 

 this are in a great measure analogous to 

 the 24th class in Linnrcus. 1. Fungi; 

 2. Jllgx; 3. Hepatic*; 4. Musci; 5. Fili- 

 ces ; to which is added a sixth, termed 

 Naiades, which contains several water 

 plants, as Hippuris, Myriophyllum, Pota- 

 mogKon, Lemma, &c. Along- with which 

 Jussieu reckons several genera, of the 

 structure of whose seed, and consequent- 

 ly of the primary character of whose class, 

 he was uncertain. 



Class II. Jlfonocotyledones with the sta- 

 mens inserted beneath the germen, or, in 

 Linn van language, having the germen 

 superior. 



The orders are four, 7. Aroidea ; as 

 Arum, Sec. 8. Typha, consisting of Typha 

 and Sparganium ; 9. Cypentifcaf, as Carex, 

 Sc.rpus, Cyperus, &c. and, 10. Graminete, 

 the true grasses. 



Class 111. Mtjiiocotyledonef:, with the sta- 

 mens inserted round the pistil, this is 

 upon the calyx or corolla 



The orders are eight, 11. Pahnce, of 

 which we have spoken at the end of the 

 Linnaean system ; 12. ^isparagi, Aspara- 

 gus, Convallaria, &c. ; 13. Junci, Juncus, 

 &.c. to which are added, Commelina, Bu- 

 tomus, Sagittaria, Veratrum, and even 

 Colchicum 14 Lilia, as Tulipa, Fritil- 

 laria, Lilium, &c. 15. ItromeliiE, of which 

 the Pine apple and Agave are instances; 

 16 Jlxph'-d'li, consisting of Aloe, Aspho- 

 delus, Hyacinthu*, Ornithogalum, Allium, 

 and several others. 17. Narcissi, Heme- 

 rocallis, Amurylis, Narcissus, Gulanthus, 

 and others; IB. Jrides, Ferraria, Iris, ixia, 

 Gladiolus, Crocus, exemplify this order. 



Class' IV. JlfojiocotyledoneSf \vith the sta- 

 mens inserted upon the germen or style, 

 bh that is, having the germ^n inferior. 



The orders uve four, 1 { J. Miaae, includ- 

 ing the plantain-tree and Ifeliconia 20. 



Cannce, which are the Scitaminex of Lin- 

 naeus and other writers, and which have 

 been lately so ably illustrated by Mr. Ros- 

 coe, in the 8th volume of the Linnxan 

 Society's Transactions ; 21. Orchid^, a 

 beautiful and favourite tribe ; 22. Hydro- 

 chandes, a rather obscure order, under 

 which Jussieu enumerates Vallisneria, 

 Stratiotes, Hydrocharis, and some others 

 which are very doubtful, or rather cer- 

 tainly misplaced here. 



Class V. Dicotyledones, without petals, 

 stamens as in the last class. 



Order only one, 23. Jristolochiie, con- 

 sisting of Aristoiochia, Asarum, and Cyti- 

 nus, in the first of which Jussieu takes 

 for a calyx what oiher botanists esteem a 

 corolla. 



Class VI. Dicotyledones, without petals, 

 stamens inserted into the calyx. 



The orders are six, 24. Elseagni, as Hip- 

 pophae, Elseagnus, Thesium, &c. ; 25. 

 Tiiwneleae, which comprises Daphne, Pas- 

 serina, and their allies; 26. Protea, con- 

 sisting of the great Cape family Protea, 

 Banksia, Embothrium, &c. ; 27. Lavri y 

 as Laurus, and some other genera, sup- 

 posed to be allied to it ; 28. Po/i/^y// -#, 

 composed of Polygonurn, Humex, Rhe- 

 um, &c.; 29. Atiipdces, Chenopodiuni, 

 Atnpiex, and others. 



Class VII. Dicotyledones, without petals., 

 stamens inferior to the germen. 



The orders are four, 30. Jlmarantld, 

 Amaranthus, Celosia, Gomphrena, Her- 

 niaria, &c ; 31. Plantagines, Psilium, 

 Plantago, and Littorella; 32. Nyctagines, 

 Mirabilis, Boerhaavia, &c. ; 33. Plitmba- 

 ginesy Plumbago, and Statice. 



Class VIII. Dicotyledon*?, of one petal, 

 which is inserted under the germen. 



The orders are fifteen, 34. Lysimachix, 

 Anagallis, Primula, &c. with some doubt- 

 ful ones ; 35. Pedicidarcs, Veronica, Eu- 

 phrasia, Pedicularis, &c. ; 36. Jlcantla, 

 Acanthus, Ruellia, Justicia ; 37 Jasmineae, 

 Syringa, Fraxinus, Olea, Jasminum; 38. 

 Viliccs, a numerous order, Clerodendrum, 

 Volkameria, Vitex, Verbena, &c. ; 39. 

 Jjbiate, a large order, containing the Di- 

 clynamia Gymnospermia of Linnaeus, with 

 some few from his Diandria, as Salvia, 

 &c. ; 40. Scrophiilarte, consists chiefly of 

 the Didynamia Angiospermia of Linnaeus ; 

 41. Solane.x, Verbascum, .Hyoscyamus, 

 Atropa, Solanum, with some other plants 

 of the Linnrean 5th class, and a few of the 

 Didynamia, compose this order; 42. Bor- 

 rtigitiex, contains the Asperifoliae, as Bo- 

 rago, Anchuso, Echium, &c. with Cordia, 

 Vurronia, Hydrophyllum, and > some 

 others ; 43. t'onvoivnli, Convolvulus, Ipo- 

 raxa, E volvulus, and some doubtful ge- 



