70 LOBELIACEiE. 



3. PATiTVTERELLA, Gray. 



1. P. debilis, Gr. Stems very leafy, 1 or 2 ft. high, ending in leafy>bracted i»cemflk 



4. liAURENTIA, MicheU. 



L Tt, caxnosula, Benth. Rooting in mud, 1 to 5 inches high: leaves entLna. 



6. DOWNINGIA, Torrey. 



1. D. elegans, Torr. Often 9 to 12 inches high: leaves slender: coroll* bine with 

 white and yellow spot on lower lip like the following: 



2. D. pulch.ella, Torr. Lower corolla lip broader than long. 



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



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



CAlllPANULACE^ 



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 slender. ...... 3 



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



I. GITHOPSIS, NuttalL 



1. G. sx>ecularioides, Nutt. Leaves small, coarsely toothed: flowers all alike. 



2. SPECULAKLA, 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 floweraaimilai. 



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. Bcabrella, Engelm. Whitened with short hairs, flowers erect, 5 6 lines long. 



3. C. rotu nd if olia, L. Stem leaves linear: corolla bright blue, 6 to 12 lines long. 



4. C. linnaDifolia, Gr. Leaves broad, obtuse, crenately serrate: corolla light blue. 

 6. C. Scouleri, Hooker. Leaves ovate to lamceolate, short petioled: pedicels long. 

 6i. C. prenantlioides, Durand. Leaves mostly sessile: flowers often clustered: pedi* 



eels short. 



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