Id* GENTIANA 



EE. iV^o; fringed: rnhix 5-eut ; co- 

 rolla lohen tipped with a sharp 



point 17. quinquefolia 



00. Corolla plaited. 

 D. Stigmas 2, always distinct. 

 E. Capsules finally raised on u 



distinct stalk. 

 F. Anthers permanently grown 



together. 

 a. Calyx as long as the corolla. IS. Froelicliii 

 GO. Calyx one-half or one-third as 

 long as the corolla. 



H. Seeds not at all winged 19. asclepiadea 



HH. Seeds slightly winged. 



I. Fls. open 20. Pneumonanthe 



II. Fls. closed, hlue 21. Saponaria 



HHH. Seeds strongly winged. 



I. Fls. closed, purple 22. Andrewsii 



II. Fls. open 23. linearis 



FP. Anthers free, at least finally. 



a. JV}imber of corolla lobes 10.. 2i. Pyrenaica 

 GG. Number of corolla lobes 5 

 (rarely 4). 



H. Calyx 4-lobed 25. prostrata 



HH. Calyx 5-lobed. 



I. Lvs. distinctly rough above 



(hispid -scnhrons) 20. Bcabra 



II. Lvs.ilistiiirthi roi,,,h at the 



J. /.. 



■ t!,a 



I'l ' ■' ' 27. Fortuni 



JJ. /,../.- ..' -'/.vr ,;,■ /..,„/ „s 

 the nthij- Inhe. 

 K. Corolla lobes ovate, acvte, 

 a little, longer than the 

 much cut appendages... 28. septemfida 

 KK. Corolla lobes oblong-lan- 

 i-rolal,', obtuse, thrice as 

 hiiiii ax the much cut ap- 



peiidiiyes 29. affinis 



III. i/i's. not distinctly rough 

 above or at margins. 

 3. Seeds not at all uinged. 

 K. Form of corolla lobes 



linear-oblong 30. Olivieri 



KK. Form of corolla lobes 

 ovate, often broadly so. 

 I.. /"/■■<. solitary. 



M. Peduiiclid 31. Porphyrio 



MM. Xol peduncled 32. omata 



1,1,. Fls. in clusters of S-5 or 



M. Lvs. hinreolate-Unear..ZZ.\xii\ora. 

 MM. L-vs. ovate to oblong- 

 laiircolate. 



N. Height J-t ft 34. sceptrum 



NN. Height y-lJ in. 



O. Calyx lobes ovate, 

 about as long as the 



calyx tube 35. calycosa 



oo. Calyx lobes linear, 

 moderately or much 

 shorter than the 



calyx tube 36. Parryi 



JJ. Seeds winged [at the base 

 in Kurroo ; in Bigelovii 

 wings narrow, thickish). 

 K. Height US in. : fls. spot- 

 ted. 

 I.. Pedicel % in. long or 



more 37. Kurroo 



LL. Pedicel very short, prac- 

 tically absent 38. Newberryi 



KK. Height 1-2 ft. 



L. Fls. in a dense spike 39. Bigelovii 



LL. Fls. 1-few or several. 

 M. Appendages conspicu- 

 ous, sometimes nearly 

 as long as the corolla 



lobes 40. Oregana 



MM. Appendages only half as 

 long as the corolla 



GENTIANA 



EE. Capsule sessile. 

 p. Anthers grown together: style 



<l,s,n,rh s,;;ls .ringed. 

 .;. r„/„r .-. ,'„i. II,.' lubes longer 



III, 1,1 I In <■<:!, ir liibf 42. Pannonica 



<iti. r.ihix , „l,r,. truncate, indis- 



Unctly 0-lubed 43. Gaudini 



V¥. Anthers free: style usually 



not distinct: seeds notwlnged, 



G. I/vs. 6-lZ in. long: calyx 5-S- 



lobed 44. luacrophylla 



GG. Zrvs. much shorter: calyx 4- 



lobed 45. Cruciata 



DD. Stigmas contiguous, rather 

 funnel-shaped, the margin ere- 

 nale-fimbriate. 

 E. Anthers free: sti/le distinct. 

 P. Calyx pellucid, veiny. 



FF. ( '(/ li/x 1,11 fy 40. Carpatica 



(.;. Sitds ivinged 47. imbricata 



G<i. S,-,',ls not winged. 



n. Lvs. ovate 48. vema 



HH. Lrx. ohovate 49. Bavarica 



HHH. Lis. linear 50. pumila 



EE. AnHi,rs connate: style short.. 51. aoaulia 

 K. Fls.si„>tted. 



(i. Col,:r sky-blue 52. angustiSolia 



GG. Color violet-blue 53. Kochiana 



FF. Fls. not spotted. 

 G. Corolla broadig bell-shaped. 



H. Size of fls. large 54. CIUBil 



HH. Size of fls. small 55. alpina 



GG. Corolla almost cylindrical.. 56. Dinarica 



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

 rolla 5-6-parted; lobes oblong-linear, acuminate; anthers 

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

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

 appear the following March and April. In May and June 

 prick them out under a coldframe, 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 



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

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

 distinct. June, July. Pyrenees. -Cult, like 1. 



3. decfimbens, Linn., f. (G. adscindens. Pall.). Lvs. 

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

 narrowly obconical, toothed between the lobes; -lobes 5, 

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

 Aug. 13. M. 705, 723. -Cult like 1. 



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

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

 mostly 6, obovate-subrotun'd, one-third the length of the 

 tube. Aug., Sept. Eu. L. B.C. 6:583 shows a rich, dull 

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

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



5. rtbra, CIairv.((5. 77i(!mnsii, Gillab.). One of 5 or 

 more natural hybrids between G. lutea and some species 

 of the section Ctelanthe, which includes G. punctata, 

 purpurea, Pannonica, and Burseri : fls. purplish out- 

 side. Swiss Alps. 



6. punctata, Linn. Lvs. 5-nerved : calyx 5-7-cut : 

 corolla tube bell-shaped ; 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 Coelanthe, in which the seed has a 

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

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

 or it is of a different color. -Cult. like 18. 



7. 41ba, Muhl. St. stout: lvs. acuminate, with a clasp- 

 ing base: fls. in a terminal head, with single or clustered 

 ones in the upper axils; dull white, commonly tinged 

 yellowish or greenish; corolla resembling G. Saponaria, 

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

 if at all spreading. Low grounds and 

 dows, N. Amer. B.M. 1551, erroneous!' 

 ?ei(oa.-Cult. Iike20. 



8. ockroletica, Frcel. St. ascending: lvs. ovate-lanceo- 

 late and obovate : fls. in crowded terminal, nearly ses- 

 sile, leafy cymes; corolla yellowish white, club-shaped, 



