KEY TO SUB-CLASSES, ORDERS AND GENERA, 159 
LXII--RU BIACE Ai—-cont. 
(a) Flowers mostly solitary :-— 
(*) Flowers large, pale yellow, pendulous, faonnel-shaped, 
4-parted ; berry large yellow ; leaves usually fascicled, 
with supra-axiNary spines :—- ... ¢edxcix—Catesbea. 
(**) Flowers small white, bell-shaped, fetid: drupe red, berry- 
like, with two }-seedcd pyrenes, usually grooved on the 
inner surface ; leaves small :— fe ... dvi—Coprosma, 
(***) Flowers small white with villous throat; drupe minute 
with 1—+ plano-convex pyrenes: leaves small; spines 
acicular :— pa .. dxi--Damnacanthus. 
(b) Flowers fascicled or in corymbose cymes :—- 
(*) Ovary 2-celled ; stigma large, usually ribbed; drupe with 
1—2 pyrenes or a 2-celled putamen :—- ... div--Canthium, 
(**) Ovary 5-celled; stigma 4—5-lobed; drupe larger, with 
4—5 pyrenes :— .. dv-—-Vaugueria. 
(***) Ovary 3—9-celled : drape with 3-9 triquetrous 1-seeded 
pyrenes ; leaves distichous, often fetid where crushed, 
with arching nerves and close-set veins :— 
dxv—Lasianthus, 
(B) Inflorescence terminal in 3-chotomous cymes; ovary 2-celled :-— 
(a) Corolla tube short straight ; seeds plano-convex :—- 
dxii——-Psychotria. 
(b) Corolla tube slender, curved; seeds concave, cup-shaped :— 
dxiy——Chasalia. 
(¢) Corolla bell-or funnel-shaped ; cymes often few-flowered, rami- 
fications and peduncles slender; drupe small, pyrenes 1—2 
crustaceous, seeds solitary and ellipsoid or two and plano- 
convex ; shrubs fetid when bruised :— __... ... Qdxvi--Saprosma. 
LXIII-—-COMPOSITA— 
(1) Invvlucral bracts many-seriate, imbricate :— 
(i) Florets all tubular purple ; leaves usually dentate; anther base obtuse 
or minutely sagittate :—— dxvili— Vernonia. 
(ai) Flor eta of the margin ligulate, forming rays ; flowers usually white or 
yellow :-- 
(1) Flowers orange-yellow ; heads very large, solitary, terminal ; leaves 
cordate or usually 3-lobed:— ___... .. dxxiv—Vithonia. 
(2) Flowers yellow with a white ray ; heads large : -~ 
(4) Heads in corymbose panicles; leaves bipinnatifid ; arborescent :-- 
dxxv-—Montanoa, 
(B) Heads solitary ; leaves-pinnatifid; frutescent :— 
dxxvi—Chrysanthemum. 
(3) Flowers white ; heads very small, Paare athens ; leaves ovate-lance- 
olate ; scandent :—— ... Q@xix—Microglossa, 
Gii) Florets of the margin ‘filiform ; ; flowers yellow ¢ or white :— 
(1) Pappus present; anthers cleft at base and appendaged at apex :-- 
(A) Bracts not scarious, but herbaceous or dry ; flower heads medium — 
corymbose ; downy glandular shrubs :-— y ... dxx--Pluchea. 
(B) Bracts scarious, usually hyaline, or inner radiating : — 
(a) Heads small, compressed, in solitary or crowded globose clusters 
which are sessile on an oblong or cylindric terminal recep- 
tacle; achenes large, 2--4-angled or many-ribbed, ciliated ; 
pappus hairs many, short and unequal; glabrous shrubs :-— 
dxxi-—Blepharistem ma, 
(b) Heads small, corymbose; achenes very small, oblong; pappus 
bairs slender, scabrid, often thickened at the tips, styles 
undivided or merely notched ; cottony or woolly shrubs :— 
dxxii-—Anaphalis. 
(c) Heads small, corymbose ; achenes small, terete, 5-angled, or 
compressed ; ; pappus hairs dilated and feathery or bearded 
above 5 styles divided ; cottony or woolly shrubs :— 
dxxiii- Helichrysum 
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