Materials for a Flora of the Malayan Feninsula. 101 



3. IxoNANTHES, Jack. 



Glabrous trees, often turning black in drying. Leaves alternate, 

 entire or crenate-serrate, reticulate ; stipules minute or 0. Floivers 

 small, in axillary cymose dichotomous peduncled panicles. Sepals 5-6, 

 shortly connate at tlie base. Petals 5-6, perigynous, contorted, persistent, 

 hardened round the fruit. Stamens 10-20, inserted on the outside of 

 a perigynous annular or cupular eglandular disk. Ovary free, 5-celled, 

 cells perfectly or imperfectly 2-locellate ; style simple, stigma capitate, 

 lobed ; ovules 10. Capsule coriaceous or woody, oblong or conic, more or 

 less perfectly lO-celled, septicidal, carpels opening inward. Seeds winged 

 or crowned with a mitriform aril, albumen fleshy ; embryo lateral, 

 cotyledons foliaceous, radicle superior. — Disteib. Species 3-4, chiefly 

 Malayan. 



Leaves oblong-oblanceolate to obovate- oblong, 

 petals "2 in. long. Capsules '7 in. long, 

 imperfectly 10-celled ... ... 1 /. icosanilra. 



Leaves elliptic to elliptic-i-otund, not obovate ; 

 petals "3 in. long. Capsules 1*35 to 1*75 in. 

 long, almost completely 10-celled ... 2 J. reticidata. 



1. IxONANTHES icosANDRA, Jack Mai. Miscel. II, No. 7 p. 53 : Hook. 

 Comp. Bot. Mag. I, 154. A tree 30 to 40 feet high. Leaves coriaceous, 

 oblong-oblanceolate to obovate- oblong, the apex blunt or much rounded ; 

 the edges entire, obscurely serrate or crenate, the base cuneate : main 

 nerves spreading, sub-horizontal, faint, about 10 to 12 pairs: length 

 2*5 to 5*5 in., breadth 1 to 2'5 in., petiole '25 to "5 in. Gymes on 

 slender peduncles, many-flowered. Floivers ovoid, '2 in. long, scarcely 

 opening; petals broadly elliptic: stamens 12 (usually), the filaments, 

 much longer than the petals. Capsule narrowly ovoid, '7 to "8 in. long, 

 5-valved, imperfectly 10-celled. Seeds 10, on elongated podosperms. 

 Hook. fil. Fl. Br. Ind. I, 416 ; Miq. Fl. Ind. Bat. i., pt. 2, 494. J. 

 dodecandra, Griif. Plant. Cantor 12. L cuneata, Miq. Fl. Ind. Bat. 

 Suppl. 484 and Hook, fil. Fl. Br. Ind. I, 416. I. ohovata Hook. fil. Fl. Br. 

 Ind. I, 417. Gordonia ? peduncularis, Wall. Cat. 4409. Hypericinea 

 dentata, Wall. Cat. 4832. Pierotia lucida, Blame Mus. Bot. i. 180. 

 £rewstera crenata, Roem. Synops. i. 141. Macliarisia icosandra, Planch. 

 MSS. Ixonanthes sp. Griff. Notul. iv. 498 ; Ic. PI. Asiat., t. 589, f. 2. 



In all the provinces except the Nicobars and Andamans ; very 

 common. 



This is rather a variable plant as to leaves, and to two of the 

 forms specific names have been given. I cannot, however, discover any 

 tangible differences in the flowers or 'fruit, so 1 have ti'eated all the forms 



433 



