tjmbe] 



Cfje (£r*a£urg at SSatang. 



1190 



one-and-a-half foot thick, which is prized 

 highly by the natives for its medicinal 

 properties and its value as a timber-tree. 

 This, so far as is at present known, is the 

 most gigantic plant of the order. 



UMBELLIFEROUS. Bearing umbels. 



UMBELLULE. A partial umbel; an 

 umbel formed at the end of one of the rays 

 of a general umbel. 



UMBER-BROWN. Nearly the same as 

 deep brown. 



UMBILICAL CORD. A thread by which 

 seeds are sometimes attached to their 

 placenta. 



UMBILTCARIA. See Tripe de Roche 

 and Gyrophora. Umbilicaria is, in fact, 

 a Gyrophora without the convolute disks 

 of that genus. [M. J. B.j 



UMBILTCATE. The same as Peltate. 



UMBILICUS. Thehilum of a seed ; the 

 scar formed by its separation from the 

 placenta. 



UMBILICUS. Herbs, indigenous to the 

 South of Europe and the Levant, belonging 

 to the order Crassulacea?. The characters 

 are— Calyx five-parted ; corolla bell-shaped, 

 with five acute lobes ; stamens ten, insert- 

 ed in the corolla ; nectariferous scales five, 

 obtuse: carpels five, tapering to a point. 

 Some of the species have the radical leaves 

 rosulate, or disposed like the petals in the 

 flower of a double rose ; others have them 

 alternate on the stalk ; in all they are 

 fleshy ; and the flowers, which are either 

 white or yellow, grow in simple or branch- 

 ed racemes. They principally affect dry 

 stony places, on which account they are 

 often employed in the decoration of artifi- 

 cial rockeries. [C. A. J.] 



UMBONATE. Round, with a projecting 

 point in the centre, like the boss or lunbo 

 of an ancient shield; as the pileus of many 

 species of Agaricus. 



UMBONULATE. Terminated by a very 

 small boss or nipple. 



UMBRACULIPORM. Umbrella-shaped; 



that is to say, hemispherical, with rays or 



j plaits proceeding from a common centre; 



I resembling an expanded umbrella ; as the 



| stigma of Sarracenia. 



UMBRACULUM. A convex body, which 

 I in Marchantia terminates the seta, and 

 bears the reproductive bodies on the under- 

 side ; also any similar body. 



UMBRELLA-LEAF. Diphylleia cymosa, 



UMBRELLA-SHAPED. The same as 

 Umbraculiform. 



UMBRELLA-TREE. Magnolia Umbrella 

 and M. tripctala ; also Thespesia pnpiilnea 

 and Pandanus odoratissimus. — , GUINEA. 

 Paritium guineense. 



UMBRELLAWORT. Oxybaphus. 



UMBRINUS. Umber-brown. 



UMBROSUS. Growing in shady places. 



UMIRI. A Brazilian name for Humirium 

 floribundum. 



UMLEE, or UMLI. Indian names for the 

 Tamarind. 



UMRTTI. An Indian name for the Emb- 

 lic Myrobalan, Emblica officinalis. 



UNARMED. Having no spines, prickles, 

 or other sharp hard projections. It some- 

 times means pointless. 



UNCARIA. This generic name was first 

 given to a group of Indian and American 

 climbing plants with hooked spines, be- 

 longing to the Cinchonacece, one of which 

 affords the astringent masticating or tan- 

 ning material called Gambir or Terra 

 Japonica; but as these plants agree in 

 their principal technical characters with 



Uncaria Gambir. 



the older Linncean genus Nauclea, they are 

 combined with it by most botanists. They, 

 however, form a well-marked section of 

 that genus, characterised by their climbing 

 habit, and by their old or barren flower- 

 stalks being converted into hard woody 

 spines, directed downwards so as to form 

 hooks. Their flower-heads also are not so 

 dense, and their fruits are narrowed or 

 stalked at the base. See Nauclea. 



Thename f?icana,being thusdisengaged, 

 was afterwards given to a South African 

 plant, U. procumbens, the sole representa- 

 tive of a genus of Pedaliacece, commonly 

 known as the Grapple-plant at the Cape of 

 Good 'Hope and in other parts of South 

 Africa, on account of its very curious fruits 

 being furnished on all sides with strong- 

 branched very sharp hooks, by means of 

 which they lay hold of the clothes of tra- 

 vellers or the skin of animals, and adhere 

 so tenaciously that they are difficult to re- 

 move. Dr. Livingstone says that when these 

 fruits happen to lay hold of the mouth of an 



