634 GENTIANA 



EE. Not fringed : calyx 5-cut : co- 

 rolla lobes tipped IV ith a sharp 

 point n. quinqueiolia 



cc. Corolla plaited. 

 D. stigmas 2, ahvai/s disfhirf. 

 E. Capsules finaliij raised mi a 



distinct stalk. 

 F. Anthers permanently groivn 



together. 

 G. Calijx as long as the corolla .18. Froelicliii 

 GG. Cahjx one-half or one-third as 

 long as the corolla. 



H. Seeds not at all u-inged 19. asclepiadea 



HH. Seeds slightly ivimjed. 



r. Fls. open 20. Pneumonantiie 



n. Fls. closed, blue 21. Saponaria 



HHH. Seeds strongly winged. 



I. Fls. closed, purple 22. Andrewsii 



II. Fls. open 22. linearis 



FF. Anthers free, at least finally. 



G. Nnmher of corolla lobes lo..2\. Pyrenaica 

 GQ. Number of corolla lobes 5 

 {rarely 4). 



H. Calyx 4-lobed 25. prostrata 



HH. Calyx 5-lobed. 



I. Lvs. distinctly rough above 



{hispid-scabrous] 2i3. scabra 



II. L-vs. distinctly rough at the 



margins (scabrous). 

 J. Lobes of calyx shorter than 



the calyx tube 27. Fortuni 



jj. Lobes of calyx as long as 

 the calyx tube. 

 K. Corolla lobes ovate, acute, 

 a little longer than the 

 much cut appendages. . .28. septemfida 

 KK. Corolla lobes oblong-lan- 

 ceolate, obtuse, thrice as 

 long as tJie rnueheut ap- 

 pendages 29. aifinis 



III. Lvs. not distinctly rough 



above or at margins. 

 J. Seeds not at all ivinged . 

 K. Form of corolla lobes 



linear-oblong 30. Olivieri 



KK. Form of corolla lobes 

 ovate, often broadly so. 

 1j. Fls. solitary. 



M. Fed uncled' 31. Porphyrio 



fiiM. Not peduncled 3li. omata 



LL. Fls. in clusters of S-5 or 

 more. 

 M. Lvs. lanceolate-linear..:',?,, trlflora 

 MJI. Lvs, ovale to oblong- 

 lanceolate. 



N. Height ;2—i ft 34. sceptrum 



NX. Height 9-12 in. 



0. Calyx lobes ovate, 

 about as long as the 



calyx tube 35. calycosa 



no. Calyx lobes linear, 

 moderately or much 

 s h orfe r than the 



calyx lube 30. Parryi 



JJ. Seeds winged {at the base 

 in Kurroo ; in Higelovii 

 icings narrow, fhiefcish) . 

 K. Height ii~S in. : fls. spot- 

 ted. 

 L. Pedicel ^2 in. long or 



more 37. Kurroo 



T-L. Pedicel very short, prae- 



ficallif absent 38. Newberryi 



KK. Height 'l^'J ft. 



1j. Fls. in cr dense spike 39. Bigelovii 



iAj. Fls. 1-few or several. 

 M. Appendages conspicu- 

 ous, soinid Imcs nearly 

 as long as the corolla 



lobes 40. Oregana 



MM. Appendages only ha! fas 

 long as the enrolla 

 lobes 41. pubenila 



GENTIANA 



EE. Capsule sessile. 



F. Anthers groivn together: style 



distinct: seeds winged. 

 G. Calyx 5-cut, the lobes longer 



than the calyx tube 42. Pannonica 



GG. Calyx entire, truncate, indis- 

 tinctly 5-lohed 43. Gaudini 



TV. Anthers free: style usually 



not distinct: seeds notxvinged. 



G. Lvs. 6-l'2 in. long: calyx 5-6- 



lobed -44. macrophylla 



GG. Lvs. inuch shorter: calyx 4- 



lobed 45. Cruciata 



DD. Stigmas contigiious, rather 

 funnel-shaped, the margin cre- 

 nate-fimbriate. 

 E. Anthers free: style distinct. 

 p. Calyx pellucid, veiny. 



FP. Calyx leafy 40. Carpatica 



G. Seeds winged 47. imbricata 



GG. Seeds not ivi^iged. 



H. Lvs. ovate 48. vema 



HH. Lvs. obovate 49. Bavarica 



HHH. Lvs. linear 50. pumila 



EE. Anthers connate: style short . .51. acaulis 

 p. Fls. spotted. 



G. Color sky-blue 52. angustifoUa 



GG. Color violet-blue 53. Kochiana 



pp. Fls. not spotted. 



G. Corolla- broadly hell-shaped. 



H. Sise of fls. large 54. Clusii 



HH. Sise of fls. small .55. alpina 



GG. Corolla almost cylindrical . .56. Dinarica 



1. liltea, Linn. Fls. in dense, umbel-like cymes ; co- 

 rolla 5~6-parted; lobes oblong-lineur, acuminate; anthers 

 free ; style none. July-Sept. Eu., Asia Minor. — Prop, 

 only by seed. Sow seed in Nov. ineoldfraine. Seedlings 

 appear the following March and April. In May and June 

 prick them out under a coldfranie, and in Aug. transfer 

 young plants to pots, where they should be kept until 

 needed for permanent outdoor use. Be very careful 

 never to break the roots. Sometimes cult, abroad for 

 medicine. 



2. Burseri, Lapeyr. Lvs. 7-nerved : corolla mostly 

 6-cut; lobes ovate-oblong, acute; anthers connate; style 

 distinct. June, July. Pyrenees. — Ciilt. like 1. 



3. deciimbens, Linn., f. (G. adschidens, Pall.). Lvs. 

 linear-lanceolate, margins scabrous: tls. blue; corolla 

 narrowly obconical, toothed between the lobes; lobes 5, 

 ovate; anthers connate, finally free. Himal., Sib. June- 

 Aug. B.M. 705, 723. -Cult like 1. 



4. purpiirea, Linn. Lvs. ovate-oblong, 5-nerved: fls. 

 purple above; corolla tube yellowish, club-shaped; lobes 

 mostl}' 6, obovate-suV)rotund, one-third the length of the 

 tube. "Aug., Sept. Eu. L.B.O. 0:583 shows a rich, dull 

 purple, with no trace of blue. — Compost of sphagnum 

 and heath soil. Be careful not to break the roots. 



5. rubra, Q\dAT\.{G. Thomasii ,Cj\\\-Ah.). One of 5 or 

 more natural hybrids between 0. lutca and some species 

 of the section Coelanthe, which includes O. punctata, 

 purpitrea, Pannonica, and Hurseri : lis. purplish out- 

 side. Swiss Alps. 



0. punct^ita, Linn. Lvs. 5-nerved : calyx 5-7-cut : 

 corolla tube bell-sbaped ; lobes ovate, muticous, one-third 

 the length of the tube; anthers finally free. Middle Eu.— 

 The spots are not arranged in any definite order. This 

 belongs to the section Ccelanthe, in whitdi the seed has a 

 wing of the same color, while the next 5 species belong 

 to the section Pneumonantbe, in which there is no wing, 

 or it is of a dilferent color. — Cult, like 18. 



7. Alba.Muhl. St. stout: lvs. a<'uniinate, with a clasp- 

 Ingbase: fls. inaterminal head, with single or clustered 

 ones in the upper axils; dull white, commonly tinged 

 yellowish or greenish; corolla resonibling G. Saponaria, 

 but more bell-shaped and open; lobi-s ovate, short, little 

 if at all spreading. Low grounds and mountain mea- 

 dows, N. Amer. B.M. 1551, erroneously, as G. ochro- 

 Icuca.-Gnlt. like 20. 



8. ochroleiica, Frod. St. asconiling: lvs. ovate-lanceo- 

 late and oliovati': ils. in crow<lod leniiinal, nearly ses- 

 sile, leafy cymes; corolhi yellowish white, club-shaped. 



