HEIN 



&\)t EmtSurg at afiotang. 



574 



named in honour of Dr. Heim, a distin- 

 guished physician of Berlin. [A. A. B.] 



HEINSIA. A shrub of the Cinchona 

 family, native of Sierra Leone. It has 

 spiny branches, and white flowers in clus- 

 ters of three or four at the ends of the 

 branches. The calyx has a five-parted 

 limb with leafy segments; the corolla is 

 salver-shaped, its tube longer than the 

 calyx, very hairy within ; anthers sessile, 

 concealed by the hairs of the corolla; 

 ovary two-celled ; fruit dry, hard, with two 

 indehiscent compartments; seeds nume- 

 rous. H. jasminiflora is an evergreen stove 

 shrub. [M. T. M.] 



HEINTZIA. A genus of Gesneracece, con- 

 taining a single species from central Ame- 

 rica, an undershrub, with erect stem, op- 

 posite fleshy leaves, and axillary umbellate 

 inflorescence. The flowers have a free 

 five-parted calyx ; a funnel-shaped corolla, 

 tomentose on the outside, the limb cut into 

 Ave roundish segments ; four didynamous 

 stamens ; and a one-celled ovary surround- 

 ed by a disk, and having two bilobed 

 parietal placenta?, with numerous anatro- 

 pal ovules ; the simple style has a funnel- 

 shaped stigma. The fruit is fleshy and 

 one-celled. [W. C] 



HETSTERIA. A genus of small trees 

 found in some of the West Indian islands, 

 and also in Guiana and Brazil. They be- 

 long to the Olacacece, which has very few 

 other representatives 5n the western hemi- 

 sphere. The flowers are produced either 

 singly or in little clusters at the bases of 

 the leaves. The calyx is small and five-cleft, 

 but increases greatly in size, spreading out 

 after flowering, and ultimately surround- 

 ing the ripe fruit ; there are five petals, and 

 ten fertile stamens. The fruit is olive- 

 shaped, enclosed in the enlarged fleshy 

 calyx, and contains a single seed. H. coc- 

 cinea forms a tree fifteen or twenty feet 

 high, with shining oblong leaves, and 

 small white flowers borne singly on short 

 stalks. It is a native of the West Indian 

 islands, particularly of Martinique, where 

 the French call it Bois perdrix, which is 

 a corruption of Pois perdrix, signifying 

 partridge pea, the fleshy red fruits form- 

 ing a favourite food of pigeons and other 

 birds. The corrupt French name Bois 

 perdrix, however, has led to the supposi- 

 tion that the prettily marked wood called 

 'Partridge wood' by cabinet-makers was 

 derived from it ; but such is not the case, 

 the source of that wood remaining un- 

 known. [A. S.] 



HELCIA sanguinolenta is a pretty cul- 

 tivated terrestrial orchid from the Peru- 

 vian Andes, having the habit of Trichopilia, 

 and differing from that genus, according to 

 Dr. Lindley, in that the column, instead of 

 being rolled up in the lip, stands erect and 

 clear of it, the anther two instead of one- 

 celled, and the anther bed 'with a deep 

 fringed border instead of two lacerated 

 processes. The plant has elongated ovate | 

 pseudobulbs, a single undulate leaf, and , 

 a one-flowered peduncle shorter than the i 



pseudobulb. The sepals and petals are 

 olive-coloured, marked with crimson spots, 

 and the lip white with crimson and yellow 

 streaks. About the middle the lip con- 

 tracts, and has two fleshy lobes standing 

 erect on each side of the column, without 

 however touching it ; the space between 

 these lobes, forming the base of the lip, 

 is a deep hairy pit. [A. A. B.] 



HELDE. Tanacetum vulgare. 



HELENIUM. A genus of herbaceous 

 perennials belonging to the corymbiferous 

 tribe of compound flowers. The characters 

 are :— Receptacle of the disk naked, of the 

 ray chaffy ; pappus flve-awned ; involucre 

 one-leaved, many-parted ; florets of the ray 

 three-cleft. The species are all natives of 

 America, and bear yellow flowers. French, 

 HeUnie. [C. A. J.] 



HELIAMPHORA. A genus of plants 

 described by Bentham, belonging to the 

 Sarraceniacece. Perennial herbaceous plants 

 found in muddy places in Guiana with 

 radical leaves, the petiole of which is tubu- 

 lar and in the form of a pitcher with an 



Heliamphora nutans. 



oblique mouth ; and an erect scape with 

 nodding white or pale rose-coloured flow- 

 ers. The perianth consists of four to five 

 hypogynous imbricated parts ; the sta- 

 mens are indefinite and hypogynous ; and 

 the ovary is three-celled, with numerous 

 ovules on an axile placenta. The pitchers 

 are lined with hairs of a peculiar nature. 

 The only species is H. nutans. [J. H. B.] 



HELIANTHEMUM. A genus of low 

 mostly prostrate shrubby or subshrubby 

 plants, closely related to Cistus, from which 

 they differ in having imperfectly three- 

 celled, instead of five or ten-celled cap- 

 sules. They are most plentiful in the 

 warmer and temperate parts of Europe, 

 and in North Africa, but occur also in 

 Egypt, in Arabia, in the Canaries and ad- 

 jacent isles, in North America, and even 

 in Brazil. They are showy plants, with 

 simple subevergreen leaves, and flve- 

 petaled fugacious flowers, mostly in ter- 



