TREMANDRACE3i. 69 



distiuctly arranged at all ages iu one verticel, are grouped in paii'S 

 enveloped by cacli petal, its edges being folded inwards. The non- 

 articulate anthers have two cells or foiu- cellules arranged in two rows. 

 The gynfeceum, fruit, and arillate seeds are the same as in Tremandra ; 

 they have as many as four ovules ^ in each cell and are generally 

 destitute of disk. Some twenty species have been described,^ 

 glabrous or glandular with alternate opposite or verticillate leaves. 



This small group ^ has often been considered as representing the 

 regular form of the Polygalaccce * ; and this was the opinion of E. 

 Bkown. Others connect it rather with LasiopetaltB^ which the true 

 Tremandras really resemble much in aspect and foliage and by their 

 stellate haii'S, but are very clearly distinguished from them by the 

 prsefloratiou of the corolla and the organisation of the androceum and 

 gynteceum. There is also believed to be an affinity between the 

 Tremandras and the Cheir anther as ^ of the group Pittosporea. The 

 TremandracecB seem to us placed between the Pohjgalucae on one 

 side, having the same gynteceum and nearly the same antboceum and 

 fi-om which they are separated by the regularity of the flowers ; and 

 the Linacece on the other, having their regular corolla, diplostemous 

 androceum, capsiilar fi-uit, the same dii-ection of the regions of the 

 ovule, and from which they are separated by their mode of pneflora- 

 tion, the fewer number of ovary cells, and the difference in the 

 consistence of the albumen. All the TremandracecB described, 

 twenty iu number, are extra-tropical Australian ; they have no 

 known property. Platijilieca verttclllafa (fig. 98-103) and several 

 TetrutJiccas are valued iu our green-houses as pretty ornamental plants. 



• In the species from the south-west of iv. 241 ; vii. 241. 



Australia ; those from the east have hut one or ^ TrananthecB K. Br. Qen. Item. (1814), 544 ; 



two. Beside the prolongation of the region of Misc. Works, ed. Benn. i. 15. — Exdl. Gen. 



the chalaza, the ovule presents a slight thicken- 1076, Ord. 232,— DC. Prodr. i. 343, Ord. 19.— 



ing of the exostomc often capped by a small B. H. Oe». 133, Ord. 232. — Tremandiacea 



obturator (as in the F.i(phorbiaccce). The ovules Lindl. Vcg. Kin^d. 384, Ord. 132. 



may be nearly collateral, three in number. * It constitutes -with Poliigahicea, the class 



The seeds are covered with hairs in the Eastern Puli/ijulincee of Exducher. 



species. ^ They arc doubtless more apparent than real, 



^L.utiLi.. PI. Nouv.-Boll. i. 95, t. 122, 123.— the organisation of the gynseceum being quite 



Reichb. Ic. Exot. t. 78. — Kudo, in Trans. Linn. different, and depending upon the analogy of the 



Soc. viii. t. 11. — Endi,. in Hneg. Ennm. 7. — foi-m and colour of the perianth. The androceum 



Hook. Icon. t. 268. — Hook. f. Fl. Tasm. t. 7. — of the Cheiruntlieras is also very different from 



Steetz, in PL Priiss. i. 212. — Besth. F/. ' that of the Tremandracea. According to 



Austral, i. IW. — Lindl. in Mitch, titr. E.rp. ii. Acakdh {T/ieor. Si/st. 190), these are "more 



206; Su: Itir. App. 3S ; va. Put. Reg. (1844), t. f eriect Pertgacece {£iip/iarbiace<e)." 

 67.— Wali>. Pep. i. 249; v. 68; Ann. ii. 87; 



