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As an ornamental flowering lawn shrub it has few equals, the blossoms remaining good for fully a fortnight. They are large-growing species, and, particularly the latter, are finding favour with cultivators in this country on account of their bold and ornamental appearance. PTELEA TRIFOLIATA. Hop Tree, or Swamp Dogwood. North America, 1704.
The sweet stock is a free growing and satisfactory stock and most of the older orchards are upon this root, but it is held to be less resistant of soil troubles than the sour stock, and therefore propagators are now largely using the latter. The trifoliata has been promoted as more likely to induce dormancy of the top growth during cold weather, because of its own deciduous habit.
All the species of Gum Cistus, or Rock Rose as they are very appropriately named, will be found to succeed best when planted in exalted positions, and among light, though rich, strong soil. They are easy of propagation. CITRUS TRIFOLIATA. Japan, 1869. This is a singular low-growing shrub, with ternate leaves, spiny branches, and fragrant white flowers.
Among them are the Scotch and spruce firs, Pinus sylvestris and Pinus abies, and the buckbean, or Menyanthes trifoliata, etc., besides the common birch and other European plants.
The tree, known at present by the name of Bonplandia trifoliata, grows at the distance of five or six leagues from the eastern bank of the Carony, at the foot of the hills that surround the missions Capapui, Upata and Alta Gracia. The Caribbee Indians make use of an infusion of the bark of the cuspare, which they consider as a strengthening remedy.
What are the conditions most favorable to orange trees budded upon sour stock; also upon sweet stock and trifoliata? The sour stock is believed to be more hardy against trying conditions of soil moisture both excess and deficiency, and diseases incident thereto.
M. Pelletier has wisely avoided using the word angosturine, because it might indicate a substance taken from the real Cortex angosturae, or Bonplandia trifoliata. The Catalonian monks are well fitted to spread this kind of cultivation; they are more economical, industrious, and active than the other missionaries.
Pinus abies, spruce fir. Taxus baccata, yew. Nuphar luteum, yellow water-lily. Ceratophyllum demersum, hornwort. Potamogeton, pondweed. Prunus spinosus, common sloe. Menyanthes trifoliata, buckbean. Nymphaea alba, white water-lily. Alnus, alder. Quercus, oak. Betula, birch.
Acorus calamus; 3. Allium sativum; 4. Raphanus sativus; 5. Menyanthes trifoliata; 6. Salvia officinalis.
A small-growing tree, with trifoliolate, yellowish-green leaves placed on long footstalks, and inconspicuous greenish flowers. The leaves, when bruised, emit an odour resembling Hops. P. trifoliata variegata is one of the handsomest of golden-leaved trees, and is well worthy of extensive planting. It is preferable in leaf colouring to the golden Elder. Perfectly hardy.
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