110 



NATUIiAL mSTOUY OF PLANTS. 



and Madagascar. Their leaves are alternate, usually glabrous, 

 more rarely covered with hairs ; the blade is entire or slightly 

 incised on the margin, with the secondary ribs obliquely parallel, 

 very marked ; the petiole is dilated laterally into a pair of mem- 

 branous caducous wings which have been considered as stipules.' 

 The large flowers are solitary, or grouped in terminal pseudo- 

 racemes. 



Reifferscheidia,- from the Philippine Islands, has all the characters 

 of vegetation and inflorescence of IFormia ; but the calyx consists 

 of more than five sepals ; as many as twelve or fifteen may be 

 counted, imbricated, becoming smaller as they are more external. 

 This unimportant character leads us to consider the single species 

 only a section .of the genus Wormiaj' 



We cannot consent to remove any further from the genus Dillenia 

 that of Aciinidia* which has by some been referred to the lern- 



f(tr(S)?nacca,' hut which possesses a floral organization so nearly that 

 of DiUenia that we may say it only differs in the form of the anthers. 

 Thus in the flower of ^. stri(/osa (figs. 159-1C4) we find a calyx of 

 five quincuncially imbricated sepals, free, or cohering slightly 



• We liavo shown (Adantionia, vi. 271) how 

 it iH Imnlly jKjssiblc Ut give ilin'eicnt luiines in 

 Wormia and Mn;jnnli(i to the l)ioud lateral ex- 

 panhiuiiM of the petiole, which full after a certain 

 time, and whieh extend to the hnindi, and 

 HO leave on itH Hurfuee, above the innertion of the 

 petiole, an oblique scar, exactly like those which 

 umjully indicate the previous existence of Hupni- 

 axillary Htii)ulefl. 



- I'KKHI,.. Rf-lil. Hank., ii. (lK3r,).7l. t. (lU.- 

 Enul., Gen., n. 4748.— B. 11., Uen., IJ, n. II. 



' Wormia luzonenna H. Un. (see Adansonia 

 vi. 270). — R. speciuna PkksI-. — I'alali Lu«)> 

 nensibus, ex 1'ukhl., loc. cil. 



* LiNDL., Introd. Nat. Si/st., 2nd ed., 439.— 

 Knul., Gen., p. 811,— WaU>., Rep., v. 131 ; 

 Ann., i. 15. — Trochosli(/ma StEii, & ZfCC, 

 Ahhandl. Akad. d. Wissettsch. Munch., iii. 726, 

 t. ii. f. 2. 



* IJknth., Journ. Linn. .S'oc., v. 55. — II. II., 

 Gen., 184, n. 14, 



