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spatulate; the lower more connate, and in a manner sheathing: the 

 calyxes hairy, with subcordate leaflets: the petals purple, emarginate 

 or obcordate, quite entire and concave. It is a native of Spain. 



The fifth species is an upright shrub, three or four feet high: the 

 branches are round, ash-coloured, angular at top, the younger ones 

 dotted with yellow: the leaves are petioled, opposite, lanceolate, 

 very white, scarcely soft, without veins, obtuse, flat, about an inch 

 in length: the peduncle terminating, compound, white; supporting 

 three or four bright yellow flowers, which appear in June and July. 

 It is a native of Portugal. 



There are varieties with numerous leaves and sulphur-coloured 

 flowers, and with yellow flowers with purple spots in their bases. 



The sixth rises with a slender stem, from three to four feet high, 

 sending out many hairy branches from the bottom upwards: the 

 leaves are very dark green, in warm weather covered with a glutinous 

 sweet-scented substance: the peduncles, which come out at the ends 

 of the branches, are long, naked, and sustain many white flowers, 

 rising above each other; their calyxes are bordered, and end in sharp 

 points. It flowers from June to August, and is a native of Nar- 

 bonne. 



There is a variety with olive-shaped leaves and sulphur-coloured 

 flowers. 



The seventh species is branching, diffused, a foot and half high 

 and more: the stem and branches round, and somewhat villose: the 

 leaves from broad stem-clasping, petioled, first spatulate, then ovate 

 or lanceolate, somewhat acute, wrinkled, sometimes waved, roughish, 

 thickish, quite entire, viscid, closely set on both sides and round the 

 edge with white hairs of different lengths, some simple, others 

 branched or headed, scarcely visible to the naked eye: peduncles 

 one-flowered, terminating the last leafy twigs, erect and villose: the 

 flowers of a rose-purple colour: these appear in June and July, and 

 the seeds ripen in September. It is a native of the Levant. 



This is the species from which the drug called ladanum is pro- 

 cured. 



The eighth has a shrubby stem, branching from bottom five or 



