192 Dr Graham's List of' Rare Plants. 



ments slender, connective obovato-elliptical, anthers small, lateral : fe- 

 male flowers of five obovate unequal petals ; styles short and stout, ex- 

 panded at the apex, and contorted ; stigmata marginal upon the extre- 

 mity ; germen with three unequal, irregular, large, crenate wings. 

 We received at the Botanic Garden, Edinburgh, this species, with many 

 other scarce plants, from the noble and always liberal establishment at 

 Berlin, in 183G. It dowered profusely in the collection of Dr Neill at 

 Canonmills. and at the Botanic Garden in IMay, and throughout the 

 summer. The great and long-continued succession of flowers which it 

 produces, and its neat foliage, makes it a desirable species in cultivation. 



Begonia sinuata. 



B. sinuata ; caulescens, ramossissima, ubique glaberrima ; foliis inrequali- 

 ter cordatis, lobatis, acutis, obtuse dentatis, nitidis, subtus pallidis, ve- 

 nis coloratis ; fioribus masculis dipetalis, staminibus subliberis ; foe- 

 miniis 5-petalis, inaequalibus ; capsulae alis subjequalibus, acutis ; pe- 

 dunculis bifidis, ramis bifloris. 



Description Whole plant glabrous and shining. Stem thick, short, much 



branched ; branches erect, tumid at the joints. Stipules attenuated at 

 the apex, dilated at the base, and sometimes half sagittate, marcescent. 

 Petioles (2-3 inches long) suberect, channelled above. Leaves shorter 

 than the petioles, unequally cordate, lobed, shortly and bluntly toothed, 

 slightly waved, bright green above, paler below, where the veins are deep 

 red, especially on the older leaves. Cymes axillary, peduncle abo\it as 

 long as the petiole, slightly compressed, dichotomous, with a male flower 

 in the fork, and one male and one female flower on each division. Male 

 flowers dipetalous, white, petals equal and subrotund, stamens united only 

 at the base of the filaments. Female flowers with five unequal petals. 

 Germen with three subequal acute wings, slightly rose-coloured at the 

 edges near the base when young. 

 The number of species in cultivation of this beautiful genus has been 

 greatly increased of late years, and a large proportion through the often 

 mentioned Garden at Berlin, from whence this was sent to the Botanic 

 Garden, Edinburgh, and to Dr Neill in 1836, under the name here adopt- 

 ed. In both these establishments it flowered in the end of May and 

 in June. The country from which it was obtained was not stated to us. 



Dendrobium aggregatum. 



D. aggregatum ; pseudobullns csespitosis, monophyllis, ovatis, sulcatis, 

 stipitatis, cuticulo cinereo vestitis ; foliis oblongis, emarginatis, coria- 

 ceis, nervosis ; racemo lalerali cernuo multifloro fere dujjlo breviori- 

 bus ; petalis ovatis sepalo latioribus; labello subintegerrimo, latiore 

 quam longo, basi concavo pubescente. 

 Dendrobium aggregatum, Roxb. FL Ind. 3. 477 — Lindl. in Wall. Cat. 



7411 Bot. Reg. 1695. 



Description Pseudo-bulbs (2 inches long) ovate, crowded, having about 



eight broad shallow grooves, and prominent subacute ridges, loosely co- 

 vered with a grey shining wrinkled cuticle, and marked with two trans- 

 verse lines (joints) ; the outer stipitate. Zea/ solitary, oblong, coriaceous, 

 obscurely nerved, emarginate and somewhat imequal at the apex, atte- 

 nuated at the base, twice as long as the pseudo-bulb. Raceme (6 inches 

 long) protruded laterally from the upper joint, cernuous, many-flowered, 

 lax. Flowers springing from the axil of a small acute bractea, orange-co- 

 loured, darkest towards the base of the lip ; sepals ovate, united at their 

 base, where the two lowest form a little pouch behind the base of the lip ; 

 petals ovate, broader and longer than the sepals, on short claws; lip 

 broader than long, entire in the middle, ciliated towards its base, slightly 

 undulated, concave at the base, and excavated over the point of its in- 

 sertion into the base of the column, minutely pubescent in front. Co- 



