1193 



&t)e Creatfttrg of 3S0tang. 



[tjred 



is of a most beautiful ultramarine colour, 

 and yields an essential oil. A dye is ex- 

 tracted from the capsules. An American 

 species, referred by some authors to this 

 genus {U. guianensis) properly belongs to 

 Phenacospermum. [B. S.] 



"DRART. The Ourari or "Wourali poison 

 of Strychnos toxifera. 



URBTJREE. Cicer arietinum, also called 

 Chenna. 



URCEOLA. The single species of this 

 genus of Apocynacece, called U.elastica, is a 

 large climbing milky-juiced shrub or tree, 

 frequently -with a trunk as thick asaman's 

 body. It is confined to Borneo Sumatra and 

 other islands of the Eastern Archipelago, 

 where its milky juice, collected by making 

 incisions in its soft thick rugged" hark, or 

 by cutting the trunk into junks, forms one 

 of the kinds of Caoutchouc called Juita- 



Urceola elastica. 



wan ; but, owing principally to want of 

 care in its preparation, this Eastern caout- 

 chouc is inferior in quality to the South 

 American, the milk being simply coagu- 

 lated by mixing with saltwater, instead of 

 being gradually inspissated in layers on a 

 mould. The plant has sharp ovate-oblong 

 opposite leaves, roughish on the upper 

 and hairy on the under surface ; and bears 

 many-flowered terminal cymes of small 

 greenish blossoms, which produce double 

 fruits, consisting of two large roundish 

 apricot-coloured rough leathery-skinned 

 pieces about the size of oranges, contain- 

 ing numerous kidney-shaped seeds nest- 

 ling in a copious tawny-coloured pulp, 

 which is much relished both by natives 

 and European residents, and is said to 

 taste like well-bletted medlars. The flow- 

 ers have a five-cleft calyx ;a pitcher-shaped 

 hairy corolla with five short erect teeth ; 

 five stamens, rising from the base of the 

 corolla, and having very short filaments 

 and arrowhead-shaped anthers, with tufts 



I of white hairs in the centre and pollen- 

 bearing at the top ; and an entire disk 

 surrounding two flat-topped ovaries, bear- 

 ing a short style and egg-like stigma 

 divided by a circular line into two differ- 

 ently coloured halves. [A. S.] 



URCEOLATE. Pitcher-shaped, that is, 

 similar to Campanulate, but more con- 

 tracted at the orifice, with a small limb. 



URCEOLINA. A genus of Amaryllida- 

 cece, the two or three species of which as 

 yet known are found in Peru. They have 

 roundish bulbs, broad oval petiolated 

 leaves growing up with the flowers, and a 

 tall scape supporting an umbel of several 

 (Ave to eight) pendulous flowers, two 

 inches long or more. The tube has a 

 straight slender cylindrical green base an 

 inch long, and a yellow ventricosely bell- 

 shaped upper portion, which is contracted 

 at the mouth, with short reflexed green 

 segments ; there are six stamens inserted 

 in the tube, and joined at the base by a 

 membrane tan abbreviated corona) ; the 

 style is erect filiform, with an obtuse 

 three-cornered stigma ; and the capsule is 

 cordiform, three-cornered three-furrowed 

 three-celled, and many-seeded. They are 

 handsome plants. [T. MJ 



URCEOLTJS. The two confluent bracts 

 of Carex ; any flask-shaped or cup-shaped 

 anomalous organ. 



CRCHILLA. A Spanish name for the 

 Orchella-weed. 

 URCHIN. (Fr.) Hydnum. 



UREDINEI. A section of Puccinicei, a 

 natural order of Fungi including those 

 genera, whose protospores (except in one 

 case, where there are two forms of fruit) 

 are not septate and disposed in regular 

 sori. All were formerly included in one 

 genus, Uredo, but this has been gradually 

 divided, till the group so named contains 

 comparatively few species. Some are un- 

 doubtedly merely the secondary fruit of 

 other Fungi, but many, so far as is at pre- 

 sent known, arc true species. In Uredo 

 proper the little heaps of brown or yellow 

 protospores are composed of several layers 

 of cells, each of which encloses a spore. 

 The stroma which supports them is coin- 

 posed of little irregular cells. Of the 

 brown species, Uredo Circceoe on enchanter's 

 nightshade may be quoted as one of the 

 most common ; and of those with yellow 

 spores U. eovfluens, which abounds in spring 

 on Mercurialis perennis. Trichobasis— most 

 of whose species are referrible as a second- 

 ary form of fruit to different Puccinice, 

 which they often accompany— has free ca- 

 ducous protospores attached to a short 

 stalk; Uromyces, of which U. Ficarice, found 

 on the lesser celandine, is a good ex- 

 ample, has stalked protospores which are 

 not caducous. Coleosporiiun has two kinds 

 of protospores, the one consisting of short 

 strings with deciduous joints, theotherof 

 obtuse clavate three to four septate bodies, 

 while a third form, with the terminal spore 

 polygonal (as figured in Berkeley's Intro- 



