67 



Wfyz Ercatfurg at 38ntanj?. 



[anha 



nodiflorus. 

 nosa. 



EPINEUSE. Aralia spi- 



ANGELONIA. A genus of Scrophulari- 

 acece distinguished by its five-cleft or five- 

 parted calyx ; its short-tubed corolla, with 

 fornicate throat, and somewhat two-lipped 

 limb : the upper lip very blunt, two-lobed, 

 the lower one longer, three lobed with the 

 middle lobe saccate at the base ; four didy- 

 namous included stamens, and a two- 

 celled many-ovuled ovary. The species, 

 which are rather numerous, inhabit South 

 America, and form erect or procumbent 

 herbs-, with opposite leaves alternate on the 

 upper part of the stems, and solitary one- 

 flowered axillary or racemose peduncles. 

 A. salicaricefolia is a pretty perennial 

 species, with tallish stems, lance-shaped 

 leaves, and a long racemose inflorescence 

 consisting of light purple flowers. A. 

 angustifolia is another species of similar 

 character, but dwarfer ; it has smooth, nar- 

 row, lance-shaped leaves, and dense, termi- 

 nal, erect racemes of deep violet-coloured 

 fiowers. The species have no particular 

 use, but are ornamental. [T. M.] 



ANGIOPTERIDE.E. A section of the 

 marattineous division of marattiaceous 

 ferns, in which the spore cases are free, 

 and set close together, face to face, in two 

 opposite contiguous lines. [T. MJ 



ANGIOPTERIS. A noble genus of ma- 

 rattiaceous ferns, representing the group 

 Angiopteridece. The genus is eastern, 

 being common in India, Ceylon, and the 

 islands of the Eastern Archipelago. There 

 are probably but few species, though they 

 have been very much extended by De 

 Vriese, the author of a monograph of the 

 family. The differences observed perhaps 

 rather indicate varieties than species. The 

 plants form a large round massive rhizome 

 or rootstock, covered with the great scale- 

 like bases of the fronds, and from this 

 solid mass rise up the stout stipites, sup- 

 porting the very large bipinnated fronds, 

 the pinnules of which are articulated on 

 the rachides. The genus is known by its 

 spore-cases being destitute of any elastic 

 or jointed ring, and by having oblong 

 distinct dorsal sori longitudinally bivalved, 

 the spore-cases being separate though 

 crowded into two opposite linear series. 

 The original species, A. evecta, was found 

 in the Society Isles. A. angustifolia, a 

 Philippine Island plant, is described as 

 having a cylindrical caudex, three feet 

 high ; the other species, so far as they are 

 known, have the caudex of a depressed 

 globular form. These plants form noble 

 objects when cultivated in our hot-houses, 

 but require much space. [T. M.] 



ANGIOSPERM8. In modern classifi- 

 cations all exogens are divided into those 

 whose seeds are enclosed in a seed-vessel, 

 and those with seeds produced and ripened 

 without the production of a seed-vessel. 

 The former are An'giosperits, and con- 

 stitute the principal part of the species ; 

 the latter are Gyiixosperms, and chiefly 

 consist of conifers and cycads. 



ANGLE-POD. A common name for 

 Gonolobus. 



ANGOLA "WEED. Ramulina furfur acea. 



ANGOPHOR A. A genus of New Holland 

 plants, belonging to the myrtle family, 

 Mi/rtacece. They are large trees, with 

 large, opposite, not dotted leaves. The 

 flowers, which are of a white or yellow 

 colour, are arranged in a corymbose man- 

 ner, and have their calyx divided into five 

 or six segments, a circumstance that serves 

 to distinguish them from the members of 

 the genus Eucalyptus ; their petals are 

 free, the stamens are distinct ; the fruit is 

 dry, dehiscent, many-celled, containing 

 several seeds, which are not winged. Some 

 of the species furnish a dark-coloured as- 

 tringent gum. [M. T. MJ 



ANGR^ECUM. The tropics of Africa, and 

 its islands, some parts of the West Indies, 

 and the Cape Colony, yield this remark- 

 able genus of orchids, one of whose spe- 

 cies produces the largest flowers known in 

 the order — the sepals and petals and pro- 

 digious spur extending to the length of 

 more than a foot in A. sesquipedale, a 

 native of Madagascar. But although 

 others approach this, yet the species are 

 for the greater part small flowered, and 

 little better than weeds. A whole section 

 of them consists of leafless plants, clinging 

 to the branches of trees by their flat bands, 

 representing roots, as in Aerides tceniale, 

 The finest species, after Madagascar, are 

 from the West of Africa, where they as- 

 sume some extraordinary forms. None are 

 found except in the hottest latitudes. 



ANGUILLAEJA. A genus of Melan- 

 thacece, containing a few species from New 

 Holland. They have the leaves and roots, 

 and the general habit of Melanthium, with 

 the structure of Omitlioglossum. [W. O] 



ANGTJLOA. A genus of very remark- 

 able terrestrial orchids, inhabiting the 

 forests of tropical America. They have 

 broad, ribbed leaves, and short leafy 

 scapes, bearing a single large fleshy flower, 

 either white, yellow, or spotted with crim- 

 son, on a pale yellow ground. One of them 

 grows in the Equator, at the height of 

 7,000 feet above the sea. Six or seven 

 species are cultivated in this country. 



ANGURIA. Under this name are in- 

 cluded certain plants belonging to the 

 gourd family, Cucurbitacece. They are 

 natives of South America, and have lateral 

 tendrils, male and female flowers distinct, 

 but on the same plant : the male fiowers 

 provided with two distinct, not united 

 stamens ; and the fruit a gourd. Some of 

 the species are cultivated. [M. T. M.] 



ANHALONIUM. A genus of South 

 American Cactacece, containing two species 

 of napif orm plants. The genus approaches 

 Mrimmillaria in the arrangement and 

 structure of its flowers, and has by some 

 been made a section of that genus ; but its 

 fruit and seed unite it on the other hand 

 with Echinocactus. [W. O] 



