21. BEGONIA crassicaulis. 



B. crassicaulis ; foliis .... hysteranthiis, caule carnoso breviarticulato crasso 

 ineequali, paniculis densis multifloris ferrugineo-pubescentibus, bracteis 

 ovatis obtusis convexis floribnsque dipetalis glabris, ovarii alis ineequali- 

 bus angulo superiore rotundato. 



Another Begonia, sent to the Horticultural Society by 

 Mr. Hartweg along with the last, than which it is much 

 handsomer. It has the singular property of flowering without 

 leaves upon short rugged gouty stems. The panicles are 

 about six or eight inches long, densely covered with snow- 

 white blossoms, whose flat circular sepals give them the 

 appearance of clusters of fourpenny pieces. At present the 

 form of the leaves is unknown. 



22. LEOCHlLUS oncidioides. 



In the miscellaneous matter of 1840 (no. 218) a plant was 

 described under the name of llodriguezia maculata, which is 

 now become common in collections of Orchidaceous plants, a 

 considerable quantity having been distributed by Mr. Skinner 

 and the Horticultural Society. It had also been called Onci- 

 dium macrantherum by Sir Wm. Hooker in the Botanical 

 Magazine, t. 3845, to which allusion was made in this work 

 at no. 33 of the miscellaneous matter for 1841. A further 

 examination of the plant has led to the conviction that its 

 name still requires correction. In many respects it is ex- 

 tremely like a Rodriguezia, and its habit is not at variance 

 with that genus ; but there are some circumstances that dis- 

 tinguish it. In the flrst place, the lip is not parallel with the 

 column, and secondly, the two arms of the column proceed 

 from below the stigma, and not from the upper edge of that 

 organ. In addition to this, the anther is disproportionally 

 large as compared with the column, and there is a honey pore 

 near the base of the lip. All these peculiarities also exist in 

 Leochilus oncidioides, a little known Mexican plant described 

 by Messrs. Knowles and Westcott, for specimens of which I 

 am indebted to the kindness of Mr. Barker. They also occur 

 in the Oncidium carinatum of the same authors, my know- 

 ledge of which is again owing to the liberality of Mr. Barker. 

 I also find every thing, except the large anther, in a Domi- 

 nica plant, formerly described by me in the Annals of Natural 



