TO LOBELIACE-E. 



3. PALMERELLA, Gray. 



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



4. LATJRENTIA, Micheli. 



1. L. carnosula, Benth. Rooting in mud, 1 to 5 inches high: leaves entire. 



6. DOWNINGIA, Torrey. 



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

 white and yellow epot on lower lip like the following: 



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



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



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



CAftlPANULACBJE 



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



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



Capsule short, opening as in No. 2: flowers all with corolla: calyx-lobes alender. . .~... 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. SPECTJLAKIA, Heister. 



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



2. S. perfoliata, A. DC. Stouter: leaves round, cordate-clasping: lower fiowerasimilar. 



3. CAMPANULA, Tournefort. 

 Annual: flowers erect; calyx-lobes connivent about the stylo in fruits ^ 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, 5, 6 



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



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



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



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

 6. O. Scouleri, Hooker. Leaves ovate to lanceolate, short petioled: pedicels long. 

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

 cels short 



