70 LOBELIACE^ 



3. FALMERELLA, Gray. 



I. P. debilis, Gr. Stems very leafy, 1 or 2 ft. high, ending in leafy-bracted raceme. 



4. LAirilENTIA, Micheli. 



1. Ij. caxnosula, Benth. Kooting in mud, 1 to 5 inches high: leaves entire. 



6. DOWNINGIA, Torrey. 



1. D. elegans, Torr. Often 9 to 12 inches high: leaves slender: corolla blue with 

 white and yellow ^ot on lower lip like the following: 



2. D. pulchella, Torr. Lower corolla lip broader than long. 



3. D. bicomuta, Gr. Corolla lip with a pair of hollow appendages at base. 



4. D. concolor, Greene. Slender, diffuse: corolla blue throughout. 



CAMPANULACE^ 



Capsule club-shaped, crowned with the rigid calyx-lobes, opening oa top. 1 



Capsule oblong, opening by 2 or 3 holes in the sides: seeds flattened 3 



Capsule short, opening as in No. 2: flowers all with corolla: calyx-lobes slender 3 



Capsule obpyramidal, bursting indefinitely : calyx-lobes ovate, toothed »..» 4 



1. GITHOPSIS, Nuttall. 

 1, G. specularioides, Nutt. Leaves small, coarsely toothed: flowers all alike. 



2. SPECULAlilA, Heister. 



1. S. biflora, Gr. Leaves ovate to lancoolate: lower flowers apetalous, sepals 3 or 4. 



2. S. perfoliata, A. DC. Stouter: leaves round, cordate-clasping: lower flowers^imilar. 



3. CAMPANULA, Toumefort. 



Annual: flowers erect; calyx-lobes connivent about the style in fruit 1 



Perennials: calyx-lobes not connivent in fruit: corolla deeply lobed. 



Style not longer than the corolla 2, 3, 4 



Style filiform, exceeding the corolla: leaves sharply serrate 4, 6, 6 



1. C. exigua. Rattan. Branching and flowering from base, 2 to 8 inches high. 



2. C. scabrella, Engelm. Whitened with short hairs, flowers erect, 5 6 lines long. 



3. C. rotundifolia, L. Stem leaves linear: corolla bright blue, 6 to 12 lines long. 



4. 0. linnaeifolia, Gr. Leaves broad, obtuse, crenately serrate: corolla light blue. 



5. C. Scoxileri, Hooker. Leaves ovate to lanceolate, short petioled: pedicels long. 



6. C. preuauthoides, Durand. Leaves mostly sessile: flowers often clustered: pedi- 

 cels short. 



