134 SYNOPSIS OF THE NATURAL SYSTEM. 



"i Leaves alternate. Flowers 5-parted. - - CAMPANULACEJB. LXXVII. 



i'j Leaves opposite. Flowers 5-parted. - - - - CAPRIFOLIACEJE. LXXI. 



75 Leaves opposite. Flowers 4-parted. RUBIACE^E. LXXI1, 



76 Plants with a milky juice. Ovaries 2, follicular. ... 86 

 76 Plants with a watery juice. Ovaries not follicular. . . 77 



77 Stamens opposite to the lobes of the corolla .... 78 



77 Stamens alternate with the lobes of the corolla. ... 79 



78 Ovary with 5 styles and but one seed. - - - PLUMBAGINACEJE. LXXXV. 

 78 Ovary with 1 style and many seeds. PRIMULACEJE. LXXXII 



79 Shrubs, trees or under-shrubs. ... 80 



79 Herbs. Leaves opposite or all radical. ... 82 



79 Herbs. Leaves alternate, cauline 84 



79 Herbs (vines) leafless. CUSCUTINE.E. XCVIII. 



80 Stamens hypogynous or slightly cohering to the base of the corolla. ... 81 



80 Stamens inserted on the corolla tube inside. - - - - SOLANACE.K. XCIX. 



SO Stamens inserted on the summit of the corolla tube. DIAPENSIACEJE. XCVII. 



81 Ovary forming a dry, many-seeded capsule. - - ERICACE.E. LXXVIII. 



81 Ovary forming a fleshy, 4 6-seeded drupe. - AQUIFOLIACE.E. LXXIX. 

 82 Leaves with stipules. Corolla bud valvate. ... - RUBIACE.E. LXXII. 

 82 Leaves without stipules. ... 83 



83 Ovary 1-celled, opening by a lid. Lvs. radical. PLANTAGINACEJE. LXXXIV. 



83 Ovary 1-celled, opening by 2 valves. Leaves cauline. GENTIANACE.E. C. 



83 Ovary 3-celled, opening by 3 valves. Lvs. cauline. POLEMONIACE^E. XCVI. 

 84 Ovary 4-parted, separating into 4 achenia. - - - - BORRAGINACE.E. XCIV. 

 84 Ovary compound, not separating, 1-celled. - - - HYDROPHYLLACE^E. XGV. 

 84 Ovary compound, not separating, 2- or 3-celled. ... 85 



85 Cor. bud tyisted-irnbricaterEmbryo less than albumen. POLEMON. XCVI. 



85 Cor. bud twisted-plicate. Embryo farger than albumen. CONVOLV. XCVIII. 



85 Corolla bud imbricated, not twisted. Verbascum. SCROPHULARIACEJE. XCI. 



85 Corolla bud plicate or induplicate-valvate. - - - - SOLANACE.E. XCIX. 

 86 Flowers (in umbels) with a 5-lobed corona. .... ASCLEPIADACEJE. CII. 

 86 Flowers (in cymes, &c.) with no corona. APOCYNACE^E. CI. 



87 Stamens distinct. Style 1. ERICACEAE. LXXVIIJ. 



87 Stamens distinct. Styles 4. -------- EBENACEJE. LXXX. 



87 Stamens united, all into one set. ------ STYRACACE.E. LXXXI. 



87 Stamens united into 2 equal sets (3 & 3). ... 18 (XII.) 



87 Stamens united into 2 unequal sets (9 & 1). ... 34 - - - - (XL VII.) 

 88 Herbs. Calyx adherent to the ovary. . . 89 

 88 Herbs. Calyx free from the ovary. ... 90 

 88 Shrubs or trees. Calyx free from the ovary. ... 94 



89 Stamens 4. Linncea. --------- CAPRIPOLIACE.E. LXXI. 



89 Stamens 3. VALERIANACEJE. LXXI1I. 



90 Plants brown, leafless. OROBANCHACE^. LXXXVII. 



90 Plants verdant, leafy. ... 91 



91 Leaves all radical and the corolla spurred. - LENTIBULACEJE. LXXXVI. 



91 Leaves cauline, or if radical the corolla spurless . 92 



92 Ovary deeply 4-lobed, forming 4 achenia. LABIATE. XCIII. 



92 Ovary entire, but splitting into 14 little nuts. - - - VERBENACE.E. XCII. 

 92 Ovary entire, capsular, 2-carpeled. ... 93 



93 Corolla bud valvate. Capsule (falsely) 4-celled. PEDALIACE^. LXXXIX. 



93 Corolla bud convolute. Capsule 2-celled. - - - - ACANTHACE^E. XC. 



93 Corolla bud imbricate. Capsule 2-celled. - - SCROPHULARIACE^E. XCI. 

 94 Flowers regular, diandrous. ... 96 

 94 Flowers irregular. ... 95 



95 Shrub climbing or tree diandrous. - - - BIGNONIACEJE. LXXXVIII. 



95 Tree tetradynarnous. Paulownia. - - - - SCROPHULARIACE.E. XCI. 



96 Corolla imbricated and twisted in the bud. JASMINACE.E. CHI. 



96 Corolla valvate in the bud. ------- OLEACE^E. CIV. 



4. Orders of the Apetalous Exogens. 



97 Herbs with alternate leaves, or leafless. ... 98 



97 Herbs with opposite or verticillate leaves. . . . 106 



97 Shrubs or trees. Leaves alternate. . . . 115 



97 Shrubs or trees. Leaves opposite. . . . 125 



98 Stipules sheathing the stem. Lvs. simple, entire. - - POLYGOVACEJE. CX. 

 98 Stipules not sheathing, serrate. Leaves pinnate. ... 15 - - - (XL VIII.) 

 98 Stipules 0, or if any, not sheathing or serrate. ... 99 



99 Flowers with a regular calyx or an involucre. . . . 100 



