1919.] NATURAL SCIENCES OF PHILADELPHIA. 227 
Corolla saccate anteriorly, and with a fine horn at the base 
of the anterior lobes. Leaves opposite. 
VI. ANGELONIBA. 
Capsule loculicidal, the septum and adjacent capsule-wall per- 
sisting, the remaining wall splitting irregularly. Corolla 
pr : Aihas at the base of the anterior petal. Leaves al- 
II. ANTIRRHINE. 
Corolla fhe a anterior lobes external in the bud. Herbs 
RHINANTHOIDES, ) 
Stamens two, the postero-laterals present, the an tero-laterals 
completely lost. Antero-lateral lobes of corolla external in 
bud. Not parasitic. Sepals four, the posterior lost. Pos- 
terior lobes of corolla completely united. 
VIII. VrRonice2. 
Stamens four, didynamous, the antero-laterals usually slightly 
onger. Usually, perhaps always, parasitic on the roots 
of other plants. 
Sepals five, alike, more or less united. Corolla-lobes all some- 
what distinct, the two posterior spreading or broadly 
arched; anterior lobe external in the bu 
IX. BUCHNERES. 
Posterior sepal shorter or wanting. Corolla decidedly two- 
lipped, the acntey lobes united and arched nearly to 
apex, the anterior lobes usually shorter; anterior or one 
antero-lateral lobe Serial g in the bud. 
X. RHINANTHES. 
I. PAULOWNIE 1. Paulownia. 
Il. GRATIOLEZ. 
Leaves alternate. Stamens five. Corolla essentially regular. 
Pedicel not bibracteolate. apraria. 
Leaves opposite. Stamens four or two (the posterior stamen 
t). Corolla more or less zygomorphic. 
Leaves entire to serrate. Seeds brown or yellow 
Seeds reticulate. Corolla with the ridges to the antero- 
abe sinuses low and not projecting beyond those 
points (so anterior filaments simple). Posterior lobes 
of the corolla little, if at all, shorter oe ihe bsetalgeds 
Leaves uniform. Capsule longer than cute 
obtuse, its dehiscence septicidal, or bepeldlaad oles 
oculici 
Sepals all alike. Pedicels never bibracteolate. Sta- 
mens four. First splitting of capsule loculicidal. 
— Sia rotate, 3-5 mm. long, densely hirsute 
ver bases of all lobes; lobes longer than 
ihe the two posterior united throughout. 
Sepals four, distinct. Lips of stigma united, 
but line of union — Placente fused 
with septum. Upper leaves alternate. 
3. Scoparia. 
