This green-flowered Corræa is by no means so desirable a plant as the alba, but is the only addition to this genus as yet in cultivation with us, and as such deserving notice. It has been already figured in the Exotic Botany of Dr. Smith, but very imperfectly, as it is there represented with only two divisions in the corolla instead of four, and six antheræ instead of eight--a deficiency we have not met with: and although we have examined a number of living and dried specimens, yet we have always found it perfect in those characters essential to the genus. The only variation we have ever observed has been sometimes a super-abundance of petals in the corolla; (instead of a deficiency) five instead of four, a frequent occurrence in many genera when the plant is in a state of luxuriant growth: and certainly little illustration, but much confusion, might probably arise from giving a figure from any specimen so very defective. We find this genus published by Billardiere under the title Mazeutoxeron--our present figure under the specific of rufum--an excellent specific, were it not a striking feature in every species of this genus, living or dried, that we have as yet seen. Our figure was made from a plant in the collection of G. Hibbert, Esq. [Illustration] PLATE CCCCXXXVII. PROTEA CANALICULATA. _Channelled-leaved Protea._ CLASS IV. ORDER I. _TETRANDRIA MONOGYNIA._ Four Chives. One Pointal. ESSENTIAL GENERIC CHARACTER. COROLLA 4-fida, seu 4 petala. Antheræ lineares, petalis infra apicem insertæ. Calyx proprius, nullus. Semina solitaria. BLOSSOM four-cleft, or four petals. Tips linear, inserted into the petals below the ends. Cup proper, none. Seeds solitary. SPECIFIC CHARACTER. PROTEA, foliis canaliculatis, incurvatis, rigidis, linearibus, acutis: floribus purpureis, terminalibus: caule rubro. PROTEA, with channelled leaves, incurved, harsh, linear, and sharp-pointed: flowers purple, and terminating the branches: stem red. REFERENCE TO THE PLATE. 1. One of the scales of the empalement. 2. The chives magnified. 3. Seed-bud and pointal, summit magnified. This fine Protea is of recent introduction, within the last four or five years, from the Cape of Good Hope to the gardens of G. Hibbert, Esq. From the particular strong channel on the back of its leaves we have adopted its specific title, and have no doubt that a feature so visible in every stage of the plant will always discriminate it. The leaves are enlivened by such brilliant red stalks, as, in addition to its flower, render it an attractive object: nor is it so difficult to preserve as many of them are; for the greatest of care is requisite to preserve numbers of this fine tribe from the damps of this island, an enemy they are so little accustomed to in their native clime. [Illustration] PLATE CCCCXXXVIII. PROTEA SPECIOSA. _Showy Protea._ CLASS IV. ORDER I. _TETRANDRIA MONOGYNIA._ Four Chives. One Pointal.