no 



ment 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 acumi- 

 nate. Seeds wingless. Inflorescence com- 

 pound, a raceme of cymosely branching lax 

 flower-clusters. Stem-leaves clasping. 2. Penslemon. 



Corolla semi-fleshy, white or rose, densely 

 pubescent within over base of anterior 

 lobes. Sterile filament much shorter than 

 others, glabrous. Anther-sacs becoming 

 confluent, densely lanose. Sepals ovate- 

 orbicular, rounded. Seeds winged. In- 

 florescence simple, a spike-like raceme of 

 single flowers on short several-bracted 

 pedicels. Stem-leaves narrowed at base, 

 short-petioled. 3- Chelone. 



Corolla red-brown, glabrous within, its antero- 

 lateral lobes vertically projecting, the anterior 

 lobe deflexed. Sterile filament shorter than 

 wide, two-lobed, yellow or red-brown. In- 

 florescence compound. • 4- Scrophularia. 

 B B . Filaments four or two, the posterior one being lost. 

 C. Acaulescent. Corolla rotate, slightly zygo- 

 morphic, white or lavender-tinged. Capsule two- 

 celled at base, septicidal. Stigma capitate. Small 

 herb, spreading b3^ stolons. III. 



5- 



CC. Caulescent, with leaves mainly cauline. Corolla 



zygomorphic, the lobes shorter than the tube. 



Capsule two-celled throughout. Inflorescence 



simply racemose. 



D. Leaves opposite. CoroUa without a spur. 



Stigma of two usually plate-like lobes. 



Capsule septicidal, or somewhat locuUcidal 



by a simple split down median line of 



carpel. I^'- Gratioleae. 



Corolla yellow or white, with throat four- 

 angled, its orifice open; pubescent within 

 at base of posterior lobes. Postero-lateral 

 stamens perfect, antero-lateral reduced to 

 sterile filaments or wanting. Several 

 bractlets at base of the five distinct sepals. 

 Capsule septicidal, or tardily slightly 

 loculicidal. 6. Gratiola. 



Corolla yellow or lavender-blue, with throat 

 somewhat flattened into a horizontal 

 plane, channeled beneath and arched 



LiMOSELLEAE. 



Limosella. 



