KEY TO SUB-CLASSES, ORDERS AND GENERA. 127 
INCOMPLET Ai—cont, 
(B) Ovule 1, erect from base of ovary, but at first not clearly distin- 
guishable from the tissues of the inner carpellary wall ; perianth 
simple or double, the inner coloured and large, the outer minute; 
epiphytic :—— nee A ade Ne sas C—LoRANTHACE, 
(ii) Ovary superior, quite free from the perianth or (NyYcTraGINAcE®, 
EL®AGNACE®) withits base adherent to the persistent perianth base, 1- 
locular, 1l-ovuled, or occasionally of several free (PHyTotaccacE®), or of 2 
Syncarpous l-ovuled (THYMEL®ACER, sometimes), carpels, rarely 1-locular with ~ 
2-many ovules on a free central (AMARANTACE#, Deeringia), or 2 collateral 
(or more than 2 biseriately superposed) ovules on a lateral (PRoreaces, 
sometimes), placenta :— 
(i) Seeds without albumen, or if albuminous (THYMEL#ACE#, 
sometimes), then the embryo straight :— 
(A) Perianth tube constricted above the ovary, subcorolline, base 
persistent with upper part deciduous, lobes 2 or 4 short valvate 
or subimbricate ; stamens as many as, and alternate with or 
twice as many as, the perianth lobes, anthers normal ; ovary 1- 
locular, ovnle 1 erect; trees and shrubs with scaly or stellate 
tomentum :—-_... ve ce! ect sce XCIX—EL#AGNACES. 
(B) Perianth tube not constricted above the ovary, lobes rather 
long :-- 
(a) Stamens as many as and opposite, or twice (rarely thrice) as 
many as, the perianth lobes :— 
(a) Perianth lobes 4 valvate, tube short or long ; stamens always 
4 in one s2ries, anthers normal; ovary |-locular, ovules solitary 
or 2 collateral, or several 2 seriately superposed ; perianth 
calycine or corolline ; leaves exceedingly variable :— 
XCVII—PROTEACEX. 
(8) Perianth lcbes imbricate ; stamens often in 2—3 series ; ovules 
pendulous :— 
(*) Perianth tube rather long, lobes 4--5 uniseriate ; stamens 1—2- 
(rarely 3-) times as many as, sometimes fewer than, lobes, 
anthers normal ; ovary 1—2 celled, each cell 1-ovuled ; non- 
aromatic :— ea ys a .. XCOVITI—THYMEL#ACER, 
(#*) Perianth tube very short, lobed either 6 or 4 biseriate; 
stamens 1—2-times as many as, and opposite, the lobes, 
anthers almost always opening by valves ; ovary always 
1-locular ; aromatic, except (Cassytha) which is parasitic :— 
XCVI—LavRAcE®, 
Note.—Brandis separates off HERNANDIACES%, and includes Gryrocarpus therein :— 
Perianth tube very short, lobes or segments 4—10, 1—2 seriate; flowers 
moncecious or polygamous ; stamens 3--7 with 1—-2 glandular staminodes at the 
buse, anthers opening by valves laterally (not upwards as in LAvRACE# except 
Cassytha) ; ovary inferior 1-locular non-aromatic:-—-_ _—.... KCVI-B—HERNANDIACEa, 
This should then come under (II)-(i)-(1)-(A). 
+ (2) Seeds usaally with copious albumen, if albumen scanty (Nycracin- 
ACE®, sometimes) or none'(CHENOPODIACE#, sometimes) than the embryo curved 
and either excentric or peripheric :— 
(A) Leaves exstipulate, or (PHYTOLACCACE®, sometimes) stipules 
minute or redaced to tuberoles :— 
(a) Perianth tubular, base adherent to ovary, tube short or long per- 
sistent and often accrescent in fruit, or deciduous, truncate or 
2-—5-toothed or-lobed, the segments plicately or simply valvate, 
sometimes (Bougainvilla) conspicuous by bracteate ; carpels 
solitary l-ovuled, style simple:-- ... LXXXVII-—-Nycracinacez®. 
(b) Perianth Icbes united only at the base, always, imbricate :-- 
(a) Perianth scariousanddry ; flowers always braciteate and 2- 
bracteolate filaments always connate at the base, hypogynous 
or perigynous ; ovary locular, style simple or 2—-3-fid, ovules 
1—2-3 ; leaves opposite alternate:—- LXNXXVIII—AmaARranTACER. 
(8) Perianth membranous, herbaceous or coriaceous, never 
scarious, stamens always-hypogynous ; leaves alternate :—— 
