Mr. Aiton tells us, that it flowers from April to June, yet Mr. Andrews, intent on giving to Messrs. Lee and Kennedy the credit of flowering it first, disregards this information, and is pleased to conjecture that the plant never flowered at Kew, because Mr. Aiton, as he alleges, has not given to it any specific character; not aware that, as a new genus, its parts of fructification are described at the end of the _Hort. Kew._ and that no specific character is ever given to a plant, where there is only one of a genus, and that for the most obvious reason. The _Aristea_ is a plant easily propagated by parting its roots, as well as by seeds, will succeed in a small pot, and though a green-house plant, will not be hurt by the moderate heat of the stove, but flower the better for it. The blossoms do not expand fully unless the sun shines hot on them. [459] [Illustration: Nº. 459] Convolvulus Cneorum. Silvery-Leaved Bind-Weed. _Class and Order._ Pentandria Monogynia. _Generic Character._ _Cor._ campanulata, plicata. _Stigmata 2._ _Caps._ 2-locularis loculis dispermis. _Specific Character and Synonyms._ CONVOLVULUS _Cneorum_ foliis lanceolatis tomentosis, floribus umbellatis, calycibus hirsutis, caule erecto. _Linn. Syst. Veg. 203._ _Ait. Kew. vol. 1. p. 213._ CONVOLVULUS argenteus umbellatus erectus. _Tournef. Inst. 84._ CONVOLVULUS major erectus creticus argenteus. _Moris. Hist. 2. p. 11 s. 1. t. 3. f. 1._ CONVOLVULUS saxatilis erectus villosus perennis. _Barr. rar. 4. t. 470._ _Bocc. Mus. 2. p. 79. t. 70._ CNEORUM album folio argenteo molli. _Bauh. Pin. 463._ The _Convolvulus Cneorum_ is a native of Spain and the Levant, was cultivated in the Botanic Garden at Chelsea in 1739, and flowers from May to September. _Ait. Kew._ In size, habit, &c. this species has some affinity to the _Convolvulis linearis_, figured pl. 289, but differs from it, and other species usually cultivated with us, in the silky appearance of its foliage, which it is not in the artist's power to imitate, and for the beauty of which, more than that of its flowers, it is very generally kept in collections of green-house plants; its blossoms are nearly white and rarely or never productive of seeds in this country, hence it is increased by cuttings. It is a hardy green-house plant, requiring a dry rather than a moist regimen. [460] [Illustration: Nº. 460] Maurandya Semperflorens. Climbing Maurandya, or Bastard Foxglove. _Class and Order._ Didynamia Angiospermia. _Generic Character._ _Caps._ bilocularis, truncata, bisulca, apice inæqualiter dehiscens. _Cor._ ringens, tubulosa campanulata, ventricosa, bisulcato-plicata. _Specific Character and Synonyms._ MAURANDYA _semperflorens_ caule fruticoso scandente, foliis hastatis nervosis. _C. G. Orteg. Nov. Pol. Dec. 2. p. 21._ USTERIA. _Cavanill. Icon. vol. 2. p. 5. num. 126. t. 116._