FnavrtRT Family. 121 



Tribe Gratioleae. Leaves mostly opposite; flowers solitary, axillary; sta- 

 mens with anthers 2-4. fifth stamen wanting. 

 , MiMUt.irs. Leaves simple; calyx 5-angled, 5-toothed. corolla elongated: stamens 4. 



Herpestis. Leaves simple; calyx-segments unequal, the upper one the largest; sta- 

 mens 4. 

 Conobba. Leaves pinnately parted ; calyx 5-parted ; corolla short ; stamens 4 

 Gratiola. Lerves simple: stamens with anthers 2. the sterile short or wanting. 

 H.vsanthes. Leaves simple; stamens with anthers 2; the sterile exserted. 

 Sub-order RHINANTMIDEAE Henth. Under lip or the lateral lobes cover- 

 ing- the tipper lip in the bud. 



Tribe Digitaleae. Leaves alternate, opposite, vertieillate or basal: flow- 

 ers racemose; calyx 4-parted; stamens 2-4; anthers 2-eelled. 



Veronica. Leaves opposite or verticillate. corolla rotate or salverform, nearly regular: 

 stamens 2. 



Synthyris. Leaves alternate and basal; corolla campanulate. 2 4-lobed, irregular: 

 stamens 2-1. 

 Tribe Gerardieae. Leaves opposite or the upper alternate: stamens 4, in 

 pairs; anthers 2-celled. 



Gerahdia. Stamens didynamous, included. 

 Seymeria. Stamens nearly equal, scarcely if at all exserted. 

 Tribe Euphrasieae. Leaves alternate or opposite; flowers racemose or 

 spicate; corolla tubular, 2-lipped. upper lip arched or curved; stamens didyn- 

 amous. 



Castilleja. Leaves alternate; anther-cells unequal, separate; capsule many-seeded. 

 Peuicclaris. Leaves alternate or opposite: anther-cells equal, not separate; capsule 



many-seeded. 

 Melampyrum. Leaves opposite: anther-cells equal; capsule 1-4- seeded. 

 VERBASCUM L. Mullein. Biennial, with alternate leaves, and ephem- 

 eral racemose or spicate flowers. Calyx 5-parted. Corolla rotate, with 5 sub- 

 equal lobes. Stamens 5, perfect, 3 or 5 filaments bearded. 



V. thapsus L. Cinnnum .If. Woolly throughout; stem 2-5 feet high, rarely 

 branched; leaves entire, oblong-ovate, decurrent; flowers in a dense spike, 

 yellow; the 3 upper stamens bearded. Fields and waste places; July-August; 

 common. 



V. blattaria L. .With M. Stem 2-4 feet high, simple or branched, sraooth- 

 ish; leaves oblong, ovate or lanceolate, clasping, coarsely dentate, lower 

 leaves often ly rate, petioled, doubly serrate, laciniate or pinnatifid: flowers 

 in a loose raceme, yellow or white with a purplish tinge: stamens bearded 

 with violet hairs. Waste places; .July-August; frequent; Johnson and Van 

 Iiuren counties; reported from Muscatine and Story counties. 



LINAR1A Juss. Calyx 5-parted. Corolla spurred at the base. 2-lipped, tip- 

 per lip '-'-lobed, lower 3-lobed; throat almost closed by a prominent palate. 

 Stamens 4. Style slender: stigma scarcely lobed. Capsule thin, many-seed- 

 ed; opening irregularly near the summit. 



L vulgaris Mill. Butter and Eijijh. Perennial; stem 1-3 feet high, glabrous: 

 leaves alternate, linear, entire, sessile; flowers yellow, in a dense raceme, 

 spur long, slender: seeds winged. Fields and roadsides; July-September; in- 

 frequenUhroughout the eastern half of the state; Winneshiek. Clayton, Louisa, 

 Johnson. Henry, Des Moines, Lee, Wapello. Van Iiuren, Appanoose, Decatur, 

 Pao-e. Clark, and Webster counties; reported from Fayette. Muscatine, and 

 Story counties. ( L. llnurui ( L) Karst. ) 



L canadensis ( L.) Dumort. Annual or biennial; leaves linear or linear- 

 oblono-; flowers blue and white, in a long slender raceme; spur filiform, ctirv- 

 ,1 Sandy soil: June-September: reported by Arthur from Linn and P>enton 

 counties. 



