178 Messrs Wight and Arnott on some New or 



nera of the order present little in common with Millingtonia. 

 Our friend Dr Hooker has suggested an affinity with Sapin- 

 dacea ; and with different genera of that order, it has several 

 points in common, — as the fleshy disk, the two superposed 

 ovules in each cell, the indehiscent fruit, with part of it abor- 

 tive; the absence of albumen, and the curved embryo ; but that 

 order has usually stamens twice as numerous as the petals, and, 

 in addition, scales or tufts of hair at the base of the petals ; so 

 that if, as in Millingtonia, these scales were to be viewed as abor- 

 tive stamens, the whole number of stamens would much ex- 

 ceed that of the petals. In Sapindacece, too, the hypogynous 

 disk is fleshy, and is, we believe, the torus : here it is quite free 

 from the receptacle, except at the point of attachment, and ap- 

 pears to be formed by the union of an outer series of styles. 

 Although, therefore, we cannot agree to place it among the true 

 SapindacecB, we can see but little objection to its forming the 

 type of a new order next them. 



Gen. 5. MILLINGTONIA, Boxb, 

 Linn. Syst. DIANDRIA MONOGYNIA. 

 Ord. Nat. SAPINDACEIS affinis. 



Calyx persistens, quandoque 1-3-bracteatus, 6-sepalus; sepala insequalia; 2 

 interiora, aequalia ; 3 exteriora, saepe insequalia : cestivatio imbricata. Pe- 

 tala 5, ad marginem receptaculi inserta, decidua, sepalis alternantia, hete- 

 romorpha ; tria exteriora, orbicularia, Integra, sepalis interioribus alter- 

 nantia ; cBstivatio imbricata : duo (spuria) interiora, staminibus fertilibus 

 opposita, minora, acute bifida. Stamina 5, petalis opposita, iisdemque 

 ima basi subunita ; tria sterilia ante petala majora ; duo fertilia ante pe- 

 Jala minora : filamenta (fertilium) plana : connectiviim terminale, trans- 

 verse ellipticum, antrorsum patelliforme, camosum, margine membrana- 

 ceum, antheram loculis juxta positis globosis transverse dehiscentibus 

 in patellula continens. Pollen globosum, laevissimum. Ovarium ova- 

 tum, supra discum planum, tenue, liberum, triangulatum, angulis bi- 

 dentatis, cum petals majoribus altemantibus, insidens, triloculare; 

 loculis biovulatis : ovula dissepimento affixa, superposita. Stylus sim- 

 plex, brevis, crassus. Stigma subbilobatum. Drupa unilocularis, mono- 

 spermaj loculo altero abortiente ; dissepimento supra evanido, ad basin 

 indurato persistente. Semen subrotundum, hinc prope basin, ad hilum, 

 intrusum ; integumentum membranaceum. Albumen nullum, (vel par- 

 cissimura, RoxL) Embryo campulitropus, curvatus, conduplicatus. Co- 

 tyledones oblongae. Radicula curvata, ad hilum versa. 



Arbores. Folia altema, exstipulata, integra, vel rarius pinnata, integerrima, 

 vel dentato-serrata. Paniculae terminales, et versus apices ramorum axillares. 

 riores scepius minuti, subspicati, in ramulos perbreves secus ramos horizori- 

 tales dispositos. 



1. M. pungens (Wall.); foliis simplicibus, coriaceis, lanceolatis, basi acutis, 

 integerrimis, utrinque glabris, nervis subtus rufo-pubescentibus ; panicula 

 rigida, dense ferrugineo-pubescenti ; rachi tereti; fioribus in ramulos ulti- 



