230 PROCEEDINGS OF THE ACADEMY OF [Dec., 
Sepals united only at base. Corolla with posterior 
lobes evident, united one-half length of anterior. 
i En aida less than one-fourth length. Leaves 
or . Globifera. 
Sepals iniled 4 2-3 length, split nearly to base on the 
ports side. Corolla with the posterior lobes 
the tube split nearly to base on posterior 
the hkl distinct 4-3 length. Leaves elliptic- 
obov 15. Hemianthus. 
Leaves AE nel Seeds pale greenish-yellow, ridged, with 
aint transverse lines. Pedicel not bibracteolate. Cor- 
olla lavender. Erect. 16. Leucospora. 
Lil, ae 17. Verbascum. 
IV. CH NEA. 
ona pe or winged, maturing many to each cell. Corolla- 
lobes uniformly colored, shorter than the tube which is 
not conspicuously pouched at base posteriorly. Posterior 
filament a conspicuous process. Sepals nearly or quite 
distinct. Plants stiff, 4-20 dm. tall. 
Corolla white or pink-red, pubescent or glabrous within, its 
anterior lobes projecting. Sepals distinct. Sterile fila- 
Corolla membranous, somewhat p ubescent or glabrous 
within over base of anterior libos Sterile filament as 
long as the others, pubescent on its posterior face. 
Anther-sacs distinct, glabrous or barbate with short 
hairs. Sepals lanceolate to ovate, acute to acuminate. 
Seeds wingless. Inflorescence compound, a raceme of 
cymosely branching lax flower-clusters. 
18. Penstemon. 
Corolla semi-fleshy, densely pubescent within over base of 
, anterior lobes. Sterile filament much shorter than 
the others, glabrous. Anther-sacs becoming confluent, 
densely lanate. Sepals ovate-orbicular, rounded. 
eeds winged. Inflorescence simple, a spike-like ra- 
ceme of single flowers on short several-bracted pedicels. 
Corolla red-brown, glabrous within, its antero-lateral lobes 
vertically projecting, the anterior lobe deflexed. Sepals 
- obviously united at base. Sterile filament shorter than 
wide, two-lobed, neon Inflorescence compoun 
20 
over one-third length, enclosing over half the capsule. 
Plant se 1-3 dm 21. Collinsia. 
V. RUSSELIEA 22. Russelia. 
