423 



CI;c Crca£ttr» at SSntamt. 



[dore 



in some are much smaller, heart-shaped 

 and nearly entire ; while the flowers are 

 borne in axillary cymes or umbels, each 

 flower being supported by an involucre of 

 three small leaves which fall early. It 

 has a five-parted calyx, five petals, and 

 fifteen to twenty stamens, accompanied 

 by five filiform or strap-shaped sterile ones, 

 all slightly united at the base into a ring. 

 The fruits are little hairy five-celled cap- 

 sules. Ropes and various sorts of cordage 

 are made in Madagascar from the bark: of 

 D. platanifolia, as well as from some other 

 of the species. D. mollis has large heart- 

 shaped leaves, three-lobed at the apex, 

 covered with a soft dense down, and its 

 rose-coloured flowers with narrow petals, 

 are disposed in dense stalked umbels, and 

 smell like hawthorn. The genus bears the 

 name of M. Dombey, a French botanist 

 and traveller in S. America. [A. A. B.] 



DOMPTE-VENIS". (Fr.) Vincetoxicum 

 officinale. 



DOXALDIA. A genus of S. American be- 

 goniads whose staminate flowers have two, 

 | and pistillate five sepals; anthers elongated, 

 : with a dark-brown small connective, the 

 i filaments not united ; the style is persis- 

 j tent, its branches furnished with a con- 

 tinuous papillose band, which makes three 

 j spiral turns ; the placentas are split length- 

 1 wise. There are two species, viz., D. ulmi- 

 \ folia andD. Ottonis, both formerly included 

 ; in Begonia. [J. H. BJ 



DOXATIA. A genus of Saxifragaceoe 

 \ from the Straits of Magalhaens: small herbs 

 ! resembling Saxifraga grcenlandica, with 

 I tufted stems, and thick linear lanceolate 

 I obtuse glabrous leaves having wool in 



their axils ; flowers, terminal, sessile, 

 j white, with the calyx tube adhering to 

 I the ovary, and the limb four or five-toothed, 



and having eight or ten petals. [J. T. S.] 



j DOXDIA. Hacquetia. 



DOXDISIA. The name applied to an 

 ! Indian shrub of the order Cinchonacece. The 



tube of the corolla is lined with rigid hook- 

 j ed hairs ; its limb is divided into five acute 

 lobes ; stamens five, inserted into the throat 

 of the corolla ; style thread-like dilated in 

 the middle ; stigma ovate. [M. T. M.] 



DOXIA The name sometimes applied 

 to. an American genus of yellow-flowered 

 composite plants, better known as Grin- 

 delia. It has been also applied to Clian- 

 thus. 



DOXKLAERIA. A garden name some- 

 times applied to Centraclenia. 



DOXZELLIA. A genus of polypetalous 

 dicotyledons, established by Tenore on a 

 I shrub grown in the plant-houses in the 

 Botanic Garden of Naples. It is, however, 

 so imperfectly described, that it has not 

 been recognised in our own collections. 



DOOB or DOORBA. Indian names for 

 Cyno&on Dactylon, which is there a fodder 

 grass. 



DOODIA. A group of polypodiaceous 

 ferns related to Woodicardia, with which 

 they are incorporated by many modern bot- 

 anists notwithstanding considerable differ- 

 ences of size, habit, and aspect. They differ 

 from Woodivardia chiefly in having super- 

 ficial instead of sunken sori, and in having 

 the indusia less convex or vaulted, and 

 more lunate. These differences seem rather 

 ! to indicate sectional than generic distinc- 

 tion. [T. M.] 



DOOGHAN'. Myristica spuria. 



DOOLOO. A kind of rhubarb. 



DOONA seylanica is a large resinous 

 dipteraceous tree with rose-coloured flow- 

 ers in panicles. Three of the five sepals 

 of its flowers are larger than the other 

 two, and increase in size after the fall of 

 the corolla ; the petals are united at the 

 base; there are sixteen stamens in two 

 rows with dilated filaments, and four-sided 

 anthers with a club-shaped appendage ; 

 ovary three-celled, six-seeded. [M. T. M.] 



DOOPADA. Indian Copal or Piney Var- 

 nish, a resin obtained from Vateria indica. 



DOORA. Sorghum vulgare. 



DOORNIA. A genus of Pandanaceve, na- 

 tive of Bourbon or Madagascar, having 

 the appearance of screw pines. The fe- 

 male flowers, which alone are known, are 

 seated on a branched spadix, and consist 

 of ovaries arranged in groups of three or 

 four. The fruit consists of a number of 

 fibrous or woody drupes arranged in 

 groups, and separated from neighbouring 

 parcels by a fibrous material. These col- 

 lections of drupes form six-sided conical 

 masses on a common stalk. [M. T. M.] 



DOORWA. Cynodon Dactylon, a fodder 

 grass of India. 



DOOR- WEED. Polygonum aviculare. 



DORADILLE. (Fr.) Asplenium. 



DORATOMETRA. A genus of begoniads, 

 consisting of East Indian undershrubs, 

 whose staminate flowers have four, and 

 whose pistillate flowers five sepals ; the 

 anthers are short, rounded on both sides, 

 with united filaments ; the style is persis- 

 tent, its branches surrounded by a contin- 

 uous papillose band which makes two spi- 

 ral turns; the placentas are undivided and 

 stalked, their transverse sections cordate- 

 ovate acute. The seed-vessels have three 

 equal wings, and are attenuated at the 

 apex. There is only one species, D. Wallich- 

 iana, which has been separated from Be- 

 gonia. _ [J. H. B.] 



DORELLE. (Fr.) Linosyris vulgaris. 



DOREMA. A genus of UmbelUferce or 

 Apiacece, comprising certain Persian herbs 

 with branching proliferous umbels, and 

 flowers imbedded in a woolly substance, 

 but having no involucre ; the calyx is 

 slightly toothed at the margin. The fruit 

 is compressed, surrounded by a broad 

 border, and marked on the back by five 

 ridges, the three central ones thread-like, 



