154 KEY TO SUB-CLASSES, ORDERS AND GENERA. 
X LIX—MYRTACEAi—cont. bs 
(* *) Flowers paniculate :— ... ¢edxx—Decaspermum, 
(B) Ovary 2-celled ; seeds 1 or fow, embryo with Jarge leaves :— 
cdxxi-—Hugenia. 
(Il) (LecytHiwsacr#)—Leaves alternate, not gland-dotted, but usually 
clustered towards the ends of branchlets; ovary 2-or more-celled ; fruit hard 
and fibrous or fleshy :— 
(i) Stamens all fertile; flowers in spikes or racemes; fruit angular, 
fibrous, l-seeded:—— ... ... cdxxii—Barringtonia. 
(ii) Stamens of exterior and interior cir cle ‘without anthers ; fruit globular 
or ovoid, fleshy,many-seeded ; flowers few (about 3) in cL terminating leafy 
shoots :— ove bey cdzxiili—Careya. 
(ii) Stamens forming : a cup, one side of which i is very short, the other 
prolonged into a petallike hood over lapping the style bearing anthers at the 
top, the stamens atthe base of the cup being minute and barren : flowers in 
clusters from trunk and branches; fruit very large, globular, woody, seeds 
numerous imbedded in pulp :— ae oe ¥e jes ... Caxxiv—Couroupita. 
L—MELASTOMACEA— 
[ Anatomical features.—Except Memecylon, the genera here described have vascular 
bundles, sometimes consisting of phloem only, in tne pith, and several (Osheckia, 
Melastoma) bave such bundles (leaf traces) in the bark also. Memecylon has strands 
of phloem in the wond.} 
(I) Seeds earl 3; leaves basally 3—7-costate :— 
(i) Stamens twice as many a8 petals, and equal :— 
(1) Calyz tube clothed with stellate hairs or pectinate scates ; flowers 
terminal, solitary, capitate or panicled :— oP “nt cdxxsv—Osbeckia, 
(2) Calyx-tube glabrous; usually epiphytic :— 
(A) Capsule 4—6-valved ; flowers umbelled ; lofty climber radicant like 
ivy :— ... edxxvii— Kendrickia. 
(B) Fruit a berry ; flowers ; terminally panicled or laterally cymed ; 
shrubby :— ay eos cdsxix—Medinilla 
(ii) Stamens the number of the ‘petals, and unequal :— 
(1) Flowers i—5-clustered terminally, mauke purple; fruit a berry :— 
cdxxvi— Melastoma. 
(2) Flowers solitary, or acai aint panicled terminally, violet or 
purple ; fruit a capsule :— “He cdxxxi—Tibouchina. 
(iii) Stamens as many as petals, 33 ‘flowers racemed or in scorpiod spikes :-~ 
cdxxviii—Sonerila. 
(Il) Seed 1 (varely 2); leaves penninerved :— oa a cdxxx—Memecylon, 
LIL--LYTHKACEA— 
(1) Ovary superior; flowers ee calyx 6-toothed with 6 minute 
accessory t2eth :— see 
(i) Flowers secund in short panicled cymes (rarely solitary) searlet ; calyx 
curved ; stamens declinate ; leaves dotted beneath ; oe iienibeesntanae ellip- 
soid, included in marcescent calyx:— ... cdsxxii*-Woodfordia, 
(ii) Flowers solitary or racemed, purple, ‘red, or white ; 3 calyx spurred or 
gibbous at base on upper side, coloured, limb plicate; capsule oblong, usually 
ruptured before the seeds are ripe, leaving placentas with seeds attached exposed:— 
cdxxxvi—Cuphea, 
(11) Ovary superior ; flowers symmetrical :— 
(i) Inland trees or shrubs :— 
(1) Calyx segments 4; capsule bursting irregularly :— ... cdxxxvii—Lawsonia. 
(2) Calyx segments 8—10; capsule incompletely 2-valved :—cdxxxiy—-Lafoensia. 
(3) Calyx segments 4—7, erect, with as many longer and spreading horn- 
like processes between them ; ; capsule 38—5-valved:— ... ow cdxxxv—Nesea. 
(4) Calyx segments 6; capsule 8—6-valved:-— .., cdxxxviii--Lagerstreemia. 
(ii) Littoral trees :—— 
(1) Calyx segments 4—; fruit baccate ; stamens many :-—-cdxxxiz—‘* onneratia. 
(2) Calyx segments 6 with 6 intermediate small ones ; 3 fruita cireum- 
scisa capsule ; stamens 12:—— vee edxxxiii— Pemphis. 
(111) Ovary inferior, adnate to ‘calyx patie ; “stamens in several rows ; !ruit 
baccate (balaustium) with a coriaceous pericarp and pulpy sxeeds:— ... cdxl—Punica, 
aa 
