Nolanacetz Nolana. 3 1 9 



N. atriplicifdlia, paradoxa, and lanceolata are closely allied 

 species or perhaps varieties ; the first, having white, blue, and 

 yellow, or wholly white flowers, is the best. 



ORDER LXXVI.-BORKAGINACE^E. 



Herbaceous or suffruticose plants having terete stems and 

 alternate simple exstipulate usually scabrid leaves. Flowers 

 regular or irregular, in gyrate spikes, racemes or cymes, rarely 

 solitary and axillary. Calyx persistent, 4- or 5-lobed, valvate 

 in bud. Corolla of various forms, usually 5-lobed, with an im- 

 bricate aestivation, the throat often furnished with hairs or 

 scales opposite the lobes. Stamens equalling the corolla-lobes 

 in number and alternate with them. Fruit of 4 indehiscent 

 1 -seeded distinct nuts, or rarely of two 2-celled nuts ; seeds 

 separable from the pericarp, usually destitute of albumen. This 

 is an extensive order, comprising 50 genera and 600 species, 

 distributed all over the globe, and especially abundant in the 

 Mediterranean region. 



1. CERllSTTHE. 



A small European genus remarkable for the smooth glaucous 

 stem-clasping foliage of its species. They are with one or two 

 exceptions of annual duration. The flowers are in one-sided 

 leafy racemes, yellow or yellow and purplish violet. Corolla 

 tubular ; throat naked. Anthers sagittate, cohering at the 

 base. But the principal distinctive character is in the fruit, 

 which is composed of 2 free 2-celled nuts. The name is from 

 icrjpos., wax, and avOos, a flower, in allusion to the fondness of 

 bees for these flowers, and hence the English name Honey- . 

 wort. 



1 . G. 'major. A branching annual about a foot high. Leaves 

 glaucous, oval, stem-clasping, minutely toothed and clothed 

 with rough ivhite tubercles. Corolla pale yellow, violet and 

 yellow, or dull violet, constricted at the mouth and shortly 5- 

 toothed, the teeth reflexed. 



G. minor is of smaller growth, with similar auricled leaves and 

 smaller yellow flowers, sometimes with 5 brownish spots. Corolla 

 divided about a third of the length into 5 subulate erect teeth. 

 G. retorta has yellow and brown flowers with a curved corolla, 

 and the leaves covered with silvery blotches. 



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