Order 61. Rubiaceoe. 



139 



74. SALVADOKACEJE. Trees or shrubs, leaves opposite entire. 

 92. PLANTAGJNE^E. Herbs with radical leaves ; stamens 



long and weak, anthers large. 

 (d) Stamens 4 or 5 ; flowers regular. 

 63. RUBIACEJS (except Randia and Gardenia). Leaves simple 



entire, stipulate, ovary inferior. 



77. LOGANIACE^;. Leaves opposite, ovary superior. 



78. GENTIANACE^: (except Canscora). Herbs, leaves oppo- 



site, all parts symmetrical. 



79. HYDB.OPHYLLACE^. Differs from the last in having 



alternate leaves, and imbricated corolla lobes. 



80. BORAGINE^;. Rough plants, leaves alternate, fruit often 



of 4 nutlets. 



66. CAMPAN.ULACE^;. Tribe Campanuleae. Herbs. 

 II. FLOWERS BILABIATE : STAMENS 4, DIDYNAMOUS, OR TWO. 



83. LENTIBULARIE^S. Herbs of moist places, corolla spurred, 



stamens 2. 



84. SCROPHULARINE^]. 



85. OROBANCHACE^. 



86. GESNERACE.E. 



87. BIGNONIACE^I. 



88. PEDALINE^;. 



89. AOANTHACE^:. 



90. VERBENACEJE. 



91. LABIATE. 



For distinctions see explana- 

 tions preceding these orders. 



III. ORDERS NOI INCLUDED IN THE AEOVE. 



64. COMPOSITE. An order quite by itself ; flowers composed 

 of many distinct perfect florets. 



70. SAPOTACE^:. ^ 



71. EBENACE^:. V Trees ; almost all with many stamens. 



72. STYKACE^E. ) 



73. OLEACEJB. Trees or shrubs, flowers regular, stamens 2. 



Note. In some cases the short descriptions given above refer not 

 to the order generally, but only to those genera and species here 

 described. 



ORDER 63 RUBIACEJE. 



Trees, shrubs, or herbs, with simple entire leaves, opposite or 

 whorled, with stipules (except Rubia), often sheathing, calyx 

 tube adherent to the ovary, corolla regular tubular, 4 or 5- 



