U
Urbanistes
Fruit medium, obovate; eye small and closed, in a deep basin; skin pale yellow, freckled with russet, slightly flushed; flesh white, juicy…
Ulex
(an old Latin name used by Pliny for some similar shrub). Furze; Gorse; Whin. Including Stauracanthus. ORD. Leguminosae. A genus embracing…
Ullucus
(from Ulluco, the Quitan name). SYN. Melloca. ORD. Chenopodiaceae. A monotypic genus. The species is a half-hardy, fleshy, decumbent and…
Ulmus
(the old Latin name used by Virgil, &c.). Elm. ORD. Urticaceae. A genus comprising about sixteen species of hardy, unarmed trees, broadly…
Umbelliferae
A large natural order of herbaceous or rarely woody plants, principally inhabiting the Northern hemisphere. Flowers hermaphrodite or often…
Umbellularia
(a diminutive from umbella, a sunshade, an umbel; in allusion to the form of inflorescence). SYNS. Drimophyllum, Oreodaphne. ORD…
Umber Moths
Under this name are included two species of Geometer Moths, belonging to the genus Hybernia (which see), viz., H. defoliaria, or the…
Uncaria
(from uncus, a hook; the old petioles are converted into hooked spines). SYNS. Agylophora, Ourouparia. ORD. Rubiaceae. A genus comprising…
Uncifera
(from uncus, a hook, and fero, to bear; alluding to the curved process to which the pollen masses are attached). ORD. Orchideae. A small…
Ungnadia
(named after Baron von Ungnad, the introducer of the Horse Chestnut). ORD. Sapindaceae. A monotypic genus. The species is a half-hardy…
Unicorn Beetle
(Copris lunaris). This can scarcely be included among Garden Insects, strictly so called; yet a brief notice of it will not be out of…
Uniola
(from unus, one; so-called by Linnaeus owing to the union of the glumes). Spike Grass. SYNS. Chasmanthium, Trisiola. ORD. Gramineae. A…
Uraria
(from oura, a tail; alluding to the bracts). SYN. Doodia (of Roxburgh). ORD Leguminosae. A genus embracing eight species of stove…
Urceolina
(from urceolus, a small cup or pitcher; alluding to the shape of the perianth). SYNS. Collania, Urceolaria (of Herbert). Including Leperiza…
Urechites
(from oura, a tail, and Echites, an allied genus; in allusion to the twisted appendages of the corolla). ORD. Apocynaceae. A small genus…
Urena
(from Uren, the Malabar name). Indian Mallow. ORD. Malvaceae. A small genus (four or five species) of stove herbs or under-shrubs…
Urginea (From the name of an Arab tribe)
(from the name of an Arab tribe, Ben Urgin, in Algeria). Including Squilla. ORD. Liliaceae. A genus comprising about two dozen species of…
Urine
An excellent manure, because of the substances contained in it. Of these, one of the most important is Ammonia, either uncombined, or…
Urocystis
(from oura, a tail or stalk, and kystis, a vessel or bladder; in allusion to the stalked, vesicular spores). This is one of the genera…
Uroskinnera
(named after G. Ure Skinner, a merchant and collector of Central American plants). ORD. Scrophularineae. A genus consisting of a couple of…
Urospatha
(from oura, a tail, and spatha, a spathe; referring to the long-pointed spathe in most of the species). ORD. Aroideae (Araceae). A genus…
Urospermum
(from ouros, a tail, and spermum, a seed; alluding to the beaked achenes). Sheep's Beard. SYN. Arnopogon. ORD. Compositae. A small genus…
Ursinia
(named after John Ursinus, of Regensburg, 1608-1666, who wrote an "Arboretum Biblicum"). Including Sphenogyne. ORD. Compositae. A genus…
Urticaceae (Genus comprising about thirty)
A genus comprising about thirty species of greenhouse or hardy, annual or perennial herbs, rarely shrubby at base, armed with stinging…
Urticaceae (Natural order of trees shrubs)
A natural order of trees, shrubs, or herbs, broadly dispersed over the temperate and warmer regions of the globe. Flowers unisexual or…
Urvillea
(named after Capt. Dumont D'Urville, of the French navy, an acute botanist, who was sent out to ascertain the fate of La Peyrouse). ORD…
Ustilaginei
(named from Ustilago, the largest genus in the group). This is the scientific name of the Fungi included under the popular name of Smut…
Ustilago
(from ustus, burnt; in allusion to the scorched appearance of the organs of the host-plants in which the spores are developed). A genus of…
Utricularia
(from utriculus, a little bottle; alluding to the minute, pitcher-like bodies developed on the leaves and roots). Bladderwort; Hooded Water…
Uvaria
(from uva, a cluster of grapes; alluding to the fruits of some of the species). ORD. Anonaceae. A genus embracing about thirty-five species…
Uvularia
(from uvula, a diminutive of uva, a grape, or bunch of grapes; in allusion to the form of the fruit). Bellwort. Including Oakesia (of…
Urginea (To the species described on pp)
To the species described on pp. 124-5, the following should now be added: U. eriospermoides (Eriospermum-like). fl., perianth oblong…
Uvedale's St, Umbel & Urtica
Germain. Fruit very large, irregular-pyriform; eye large and open, almost level with the surface; skin smooth, dark green, brightly…