756 CINCHONALES. 



[Epigynotjs Exogkns. 



Alliance LIV. CINCHONALES. — The Cinchonal Alliance. 



Diagnosis. — Epigynous Exogens, with dichlamydeovj monopetalous flowers, and a minute 

 embryo lying in a large quantity of albumen. 



This Alliance is known from Campanals and Myrtals by its large quantity of albumen 

 and small embryo, from Cactals, Grossals, and Umbellals by its monopetalous corolla, 

 from Asarals by its dichlamydeous flowers. The Orders of it are closely allied, the three 

 last in the following enumeration being indeed separated by no very strong characters. 

 Cranberries and Columelliads, although not usually brought up to this point, are, never- 

 theless, hardly separable from the Alliance ; the former are a lateral tendency to 

 Ericals. 



Cinchonals are distinguishable from Umbellals by little except their monopetalous 

 corolla, especially if Caprifoils and Cornels are compared, and therefore must partici- 

 pate in the undoubted affinity of the latter Alliance to Ranals ; a circumstance not to be 

 lightly esteemed in mapping out the position which the various groups of the Natural 

 system occupy with respect to each other. 



A very strong approach is shown to tne diclinous sub-class, on the part of Caprifoils, 

 among which Viburnum, minus a corolla and with an amentaceous inflorescence, would 

 almost be a Garryad. Indeed, even a tendency to unisexuality occurs among Caprifoils, 

 when, as in Viburnum, &c, some or all the flowers become neuter or male. And here 

 again we have exactly the same tendency as manifests itself in bo many genera of 

 Umbellifers, which, as in Heracleum, Ac, form radiant male or neuter flowers. 



Natural Orders of Cinchonals. 



Stamens epigynous ; anthers opening by pores 291. Vacciniaceje. 



Stamens epipetalous, bursting longitudinally ; anthers sinuous. 1 „.„ p 

 Flowers unsymmetrical J 



Stamens epipetalous, bursting longitudinally ; anthers straight.\n (: ,o p 

 Leaves with interpetiolar stipules J 



Stamens epipetalous, bursting longitudinally; anthers straight. \nqi p pniFOTTArp^- 

 Fruit consolidated. Leaves without stipules J 



Stamens epipetalous, bursting longitudinally ; anthers straight. "I 90c p ttacf;f 

 Fruit didymous. Leaves verticillate, without stipules . . . J " ' 



