106 THE JOURNAL OF BOTANY 



Explanation of Plate 512. 

 1. Part of plant with perianth, antical view. 2. Part of mouth of peri- 

 anth. 3. Innermost bracteole. 4. Section of perianth at middle. 5. Section 

 of perianth below middle. 6. Innermost bracts. 7. Part of stem with leaf. 

 8. Section of stem and leaf. 9. Postical view of stem, showing under leaves. 

 10. Cells of (antical) leaf -segment. 11. Cells of leaf of C. media (lunulcefolia) 

 for comparison. 



CRAIBIA, A NEW GENUS OF LEGUMINOSJE. - 

 By S. T. Dunn, B.A. F.L.S. 



In Engl. Jahrb. xxx. (1901) 88 Dr. Harms described a series 

 of specimens collected by Scheffler in German East Africa as a 

 new genus, Schefflerodendron. With these he associated an 

 Angolan species described by Taubert as Millettia adenopetala 

 (Engl. Jahrb. xxiii. (1896) 184). As thus constituted his genus 

 comprised two species closely connected by numerous conspicuous 

 characters, among which was the presence on their leaves and 

 flowers of peculiar brown glands. In the herbaria of Kew 

 and the British Museum there are a number of undetermined 

 specimens of trees from various parts of Tropical Africa which 

 are nearly related to the genus, having single or alternate glabrous 

 reticulate leaflets, peculiar globular buds, racemose inflorescences 

 more or less clothed with stiff orange-coloured hairs, calyces with 

 four triangular teeth, one emarginate, standard broadly ovate, 

 short-clawed, ovary sessile, 4-5-ovulate. In spite of the slight 

 differences all these are clearly members of a well-defined group, 

 and to it must also be added three species already described under 

 Dalbergia, Lonchocaiyus, and Millettia respectively. 



It was at first supposed that it was simply an eglanduiar 

 section of Dr. Harms's genus, but on inspection of authentic 

 specimens with which he courteously supplied the writer, it be- 

 came evident that the two groups differed too much in floral 

 characters, and especially in the structure of the ovary (a charac- 

 ter of considerable importance in this part of the Legmninoscs), to 

 be able to be placed conveniently in one genus. Dr." Harms had 

 already (Engl. Jahrb. xlv. 313) drawn attention to the relations 

 between some of these species and to their doubtful systematic 

 position. After a careful review, therefore, of the material, he and 

 the writer agreed to found upon it a new genus and to name it 

 after their mutual friend Mr. Craib, of the Kew Herbarium staff, 

 as an appropriate acknowledgement of the assistance which they 

 have from time to time derived from herbarium material upon 

 which he has worked in that Natural Order. 



This interesting genus, which contains several trees described 

 by collectors as exceptionally beautiful when in full flower, now 

 comprises nine species which are enumerated below, with a key 

 and descriptions of those hitherto undescribed. 



I am much indebted to the Director of the Royal Botanic 

 Gardens, Kew, and to the Keeper of the Botanical Department of 



