468 



DON 



THE UNIVERSAL HERBAL ; 



DOR 



ovate-lanceolate, toothed ; flowers terminating. A stiff 

 erect shrub, with pendulous leaves. Found in Surinam. 



2. Dolioearpus Major. Stem scandent ; leaves ovate, 

 toothed ; peduncles lateral, one-flowered. The flowers arc 

 aromatic, but rather nauseous, and the berries positively 

 pernicious ; stem slender and flexuose ; brandies at right 

 angles ; leaves spreading. Found in Surinam. 



3. Dolioearpus Calinea. Stem scandent ; leaves ovate, 

 quite entire ; flowers axillary, in bundles. This is a shrub 

 with several knotty spreading twigs, scattering over 

 the neighbouring trees ; the branches are garnished with 

 alternate, oval, shining, green leaves, terminating in 

 a point, the largest are four inches long. The flowers 

 spring from the bosoms of the leaves, on the branches, and 

 are arranged alternately in little heaps; the corolla con- 

 sists of three white petals, which are large and rounded. 

 Native of Guiana. 



Dombeya ; a genus of the class Diojcia, order Monadel- 

 phia. GENERIC CHARACTER. Mate. Calix: arncnt ovate- 

 cylindric, imbricate, with very many woody short scales, each 

 terminated by a lanceolate, acute, coriaceous leaflet, concave 

 at bottom, narrower and recurved at top. Perianth and 

 Corolla : none. Stamina : iilament.i none, except the amen- 

 taceous scales ; anther ten or twelve, heaped about each 

 amentaceous scale, linear, grooved, the length of tha scale, 

 fastened to the top of it, below the leaflet by the upper extre- 

 mity, approximating and converging round the scale, sepa- 

 rating by the lower extremity when the scale is broken. Fe- 

 male. Calix: ament large, roundish, ovate, closely imbri- 

 cate, with very many germina, resembling scales. Perianth 

 and Corolla : none. Pistil : germen each wedge-form, ob- 

 long, subcompressed, contracted at the base into a point, 

 with a broad, thick, callous termination ; style none; stigma 

 bivalve, the valves unequal, the inner very small, obtuse, the 

 outer very large, broad at the base, thick, curved inwards 

 above the inner one, terminated by a linear, acute, slender, 

 ascending strap, almost the length of the germen, bent in at 

 a right angle above it. Pericarp : none. Seeds : very many, 

 heaped into a roundish strobile, imbricate, each oblong, sub- 

 cylindric, towards the base obtusely four-cornered, with a 

 short broad spatulate wing or strap at the top, thickened at 

 the edge, incurved, ascending; the shell coriaceous, coloured, 

 valveless ; the kernel oblong, subangular at the base. Re- 

 ceptacle : naked, villose, here and there alveolate. ESSEN- 

 TIAL, CHARACTER. Male. Calix : the scales of an ament, 

 terminated by a leaflet. Corolla : none. Anthera : ten or 

 twelve, without filamenta. Female. Calix .- ament with 

 many germina. Corolla none. Stigma : bivalve, unequal. 



Seeds : many, in a roundish strobile. The only species 



hitherto discovered is, 



1. Dombeya Chilensis. Turbinate, imbricate leaves, mu- 

 cronated on one side ; the branches quaternate and cruciate. 

 This tree is very little known : it is a native of Chili, of a 

 resinous nature, in some respect allied to Protea ; and also 

 to the Pines in some particulars of its fructification. The 

 trunk is straight, and of considerable height; the wood white, 

 solid, and clothed with a kind of double bark ; the boughs are 

 covered with very numerous leaves,sessile,oval, very pointed, 

 entire, smooth, and coriaceous, a little concave inwards, and 

 convex outwards ; they have a sharp point, and are ranged 

 on the branches in the manner of scales ; the flowers are 

 male and female, borne on different individuals, and hang 

 in solitary catkins from the tops of the branches. 



Donatia ; a genus of the class Triandria, order Trigynia. 

 GENERIC CHARACTER. Calix: perianth three-leaved; 

 leaflets awl-shaped, short, remote. CoroUa .- petals nine, 



or eight to ten, linear, oblong, twice as long as the calix, 

 spreading. Stamina : tilamenta three, awl-shaped, the 

 length of the calix ; antherse subglobulur, twin. Piatil .- 

 germen inferior ; styles three, filiform, a little longer than 

 the stamina; stigmas bluntish. ESSENTIAL CHARACTER. 

 C(tlit : three-leaved. Petals : nine, twice as long as the 



calix, linear, oblong. Anthera : subglobular, twin. 



The only known species is, 



1. Donatia Fascicularis. This is a simple undivided 

 plant, a finger's length, with imbricate leaves. Native of 

 moist rocky places in Terra del Fuego. 



Dortena ; a genus of the class Pentandria, order Monogy- 

 nia. GENERIC CHARACTER. Calix : perianth one-leat'ed, 

 five-cleft, shorter than the corolla ; divisions ovate, concave. 

 Corolla : one-petalled, subcylindric, wheel-shaped ; border 

 five-cleft ; segments ovate, obtuse, erect. Stamina : fila- 

 menta very short, so as to be scarcely any, inserted into 

 the tube of the corolla ; anthers oblong, subquadrangular, 

 included. Pistil : germen conic, smooth, superior ; style 

 filiform, the length of the corolla ; stigma truncate, eniar- 

 ginate. Pericarp .- capsule ovate, acute, one-celled. Seals : 

 very many. ESSENTIAL CHARACTER. CoroUa : five-cleft. 



Stigma : emarginate. Capsule : one-celled. The only 



species hitherto discovered is, 



l.Donena Japonica. A tree about six feet high ; branches 

 alternate, round, ash-coloured, smooth, divaricate ; leaves 

 alternate, petioled, oblong, acuminate, remotely and ob- 

 scurely serrate, nerved, smooth, spreading, the length of a 

 finger ; petioles semicylindric, grooved on the upper part, 

 smooth, half an inch in length ; flowers in racemes, white, 

 minute ; racemes axillary, scarcely half an inch long ; cap- 

 sule the size of a pepper-corn. Native of Japan. 



Doronicum ; a genus of the class Syngenesia, order Polyga- 

 mia Superflua. GKNF.RIC CHARACTER. Calix: common with 

 leaflets lance-subuliite, about twenty in number, equal, up- 

 right, of a double series, length generally of the rays of the 

 corolla. Corolla : compound, rayed ; corollules hermaphro- 

 dite, tubular, numerous in the disk ; females ligulate ; of 

 the number of calicular leaves, in the ray; proper of the her- 

 maphrodite funnel-form ; border five-cleft, patulous; female 

 ligulate, lanceolate, three-toothed. Stamina : in the herma- 

 phrodites; filamenta five, capillary, very short; anther 

 cylindric, tubular. Pistil : in the hermaphrodites ; germen 

 oblong ; style filiform, length of the stamina ; stigma emar- 

 ginate : in the females, germen oblong; style filiform, length 

 of the hermaphrodites ; stigmas two, reflex. Pericarp : 

 none ; the calix slightly converging. Seeds .- in the herma- 

 phrodite solitary, obovate, furrowed, a little compressed; 

 down hairy : in the females solitary, obovate, furrowed, a 

 little compressed; down none. Receptacle: naked, flat. 

 ESSENTIAL CHARACTER. Calix: scales in two rows, equal, 

 longer than the disk. Seeds: of the ray naked, and desti- 

 tute of down ; down to those of the disk simple. Receptacle : 



naked. The species are, 



1. Doronicum Pardalianches ; Great Leopard's Bane. 

 Leaves cordate, obtuse, toothletted, those next the root pe- 

 tioled, on the stem embracing. Roots thick, fleshy, divided 

 into many knots, sending out strong fleshy fibres, which pe- 

 netrate deep into the ground ; root-leaves heart-shaped, hairy, 

 petioled ; among these arise the flower-stalks, which are 

 channelled and hairy, nearly three feet high, putting out one 

 or two smaller stalks from the side; these grow erect, and 

 have one or two heart-shaped leaves closely embracing the 

 stalk; this and each branch is terminated byone larsreyellow 

 flower, which appears in May, and ripens seed in July. Na- 

 tive of France, Switzerland, Germany, Austria, Carniola, 



