REVISION or THE NATURAL ORDER BIGNONIACE.E. 379 



case before us, there is notliing to show that either Hudson or Murray 

 (or rather Haller) had specially in view either segregate, in their defi- 

 nitions of B. ramosus and B. asper, and if, as seems probable, the 

 B. serotinus of Beneken is the most usual form, in fact the type, it 

 is for the rarer segregate that a varietal name is required. 



My object has been to direct attention to the B. serotimis of Beneken, 

 and the B. asper of Billot's ' Exsiccata.' Are they distinct ? and have 

 we the latter in this country ? To determine the first question fresh 

 specimens are necessary ; characters derived from the rachis are only 

 beginning to attract the attention of students of Grasses, and sliould. 

 they prove to be of the value which, from the papers of Dumortier and 

 Crepin, seems likely, they will hardly be available in herbarium speci- 

 mens. 



EEVI3I0N OF THE NATURAL ORDER BIGNONIACE.E. 

 By Berthold Seemann, Ph.D., F.L.S., etc. 



{Continued from page 341.) 



DoLiCHANDRONE (gen. nov. Jacarandearum), Seem, in Journ. of 

 Botany, 1863, p. 226. Calyx spathaceus, longitudinaliter fissus, 

 acutus, integerriraus. Corolla subinfundibuliformis, tubo elongato, 

 limbo subaequali 5-fido, lobis dentatis v. fimbriato-crispis, sestivatione 

 imbricatis. Stamina 4, didynama, cum quinto sterili, fauce corollas 

 inserta. Anthei'ae glabrae, 2-loculares, loculis discretis. Stylus elon- 

 gatus ; stigma 2-lamellatum. Ovarium sessile, oo-ovulatum, ovulis 12- 

 seriatim dispositis. Discus glandulosus, integer. Capsula subcylin- 

 dracea v. siliquaeformis compressa, loculicido-debiscens, ex septo valvis 

 contrario lateraliter dilatato spurie 4-locularis. Semina co, ad quodque 

 septi latus 2-3-serialia, suberosa, membranaceo-alata v. alls crassius- 

 culis opacis, septo applicato, nee (ut in Stereospermoi) in foveis im- 

 mersa, superiora infer ioribus incumbunt. — Ar bores elatse v. raediocres in 

 Asia et Australia tropica indigena, foliis oppositis verticillatisve (v. in 

 pi. jun. et ram. infer, alternis), imparipinnatis v. simplicibus, foliolis 

 varie ellipticis v. rarissime filiformibus, integerrimis v. denticulatis ; flo- 

 ribus terminalibus racemosis v. paniculatis, coroUis albis, quandoque 

 fr.Tgrantibus. — Dulichaudra, sect. B. Dolichandrone, Fenzl, in Regenb. 

 Dcnkschrift. iii. p. 113. 



Allied to Jacarauda in the nature of the fruit, but, by the septum 



