RHINANTHACEAE 
bracts attenuate: corolla with orifice open: anthers 
parbaté or glabrous : seeds turgid, wingless. 
d purple, iolet-blu ue, or white: posterior filament 
slender, as jns as ac others: cauline leaves with 
clasping blades: stem terete, 
Corolla greenish -purple Es "m onishe posterior acne 
Scale-like. 2-lobed : cauline leaves with petioled blades 
Stem 4-angled. 
VI. RUSSELIEAE 
Tall diffuse perennial herb, with rush-like stems and seale- 
like leaves (except on shoots ). 
VII. ANGELONIEAE 
Erect perennial herb with leafy stems: corolla violet. 
VIII. COLLINSIE 
Low annual herb with broad leaf-blades and xis flowers, 
the corollas partly blue and partly white, 
IX. pisse. 
Capsule dehiscing by irregular distal ruptures: rolla with 
the posterior lobes arched and distally spreading : fila- 
ments and anthers glabrous: flowers in terminal racemes: 
leaf-blades narrow, sessile: plants erect. 
Capsule dehiscing by a lid: corolla with the posterior lobes 
projecting: filaments and anthers pubescent: e rers axib 
lary : leaf-blades broad, petioled : plant prostra 
X. ERONICEA 
Corolla with. lobes much shorter than the tuber capsule 
: s 5: e 
Corolla with lobes ip as than the tube: capsule as wide as 
long or wider, flat: a eran a deeply notched: sepals 4: 
I. BucH 
Stamens with both anther-sacs equally duod corolla 
not salverform, the throat open: capsule partly ex- 
the c 
S 
Corolla tu ibular, crane “fleshy, semi-persistent : anthers 
ed. 
OON „campan ulate or rotate, yellow or rose- purple, 
ranous, early falling: anthers little or 
all ps cserted. 
Anther-saes glabrous (or in Afzelia cassioides with 
few bristle-like hairs at ap = 2 corolla rotate: 
sti in punctiform or capita 
Corolla densely pubescent within on all sides 
filaments didynamous: anther-sacs police tink 
cuspidate at the base, opening lengthwise: 
style persistent on the capsule. 
e finely pubescent in a ring about the base 
the Pearce filaments nearly or quite 
nther-sacs obtuse at the base, opening | 
n al: 
by apical A style deciduous 
Ane -sacs lanose: corolla semi- tum ARN TTE stigma 
Corolla yellow: anther-sacs with rigid awns at 
se: 7 e 
Corolla purple or pink, nearly always with red- 
purple spots within: anther-sacs rounded or 
aaa "NEU at the base: stigma 
Leaf-blades of a filiform, linear, or spatulate 
type, entire: calyx- lobes shorter than the 
tube or about A a anther-saes of 
h : 
bot equ 
Leaf-blades of a EOT “type, Some, at 
least, auriculate-lobed at the pase: calyx- 
h 
Stamens with only one anther-sac Root the other 
wholly abortive: corolla salverform, the throat nearly 
closed : capsule nearly or quite included in the calyx-tube ; 
pedicel bibracteolate. 
75 
1185 
20. PENSTEMON. 
24. 
to 
ge 
ve) 
fet 
c2 
2 
v 
ve) 
. SCROPHULARIA. 
. RUSSELIA. 
. ANGELONIA. 
COLLINSIA. 
LINARIA. 
. IXICKXIA. 
. VERONICASTRUM, 
. VERONICA. 
. MACRANTHERA, 
. DASISTOMA. 
. AFZELIA. 
. AUREOLARIA, 
. AGALINIS, 
TOMANTHERA. 
35. BUCHNERA, 
