394 



POLEMONIACEAE (PHLOX' FAMILY) 



■l-^W*^; 



l(.l 



2, Gymnoateria. 



3, CoUamia. 



4, Gili^. , ' : 



■ 5. Navarretia'; ■ 

 6, Polen^Alumi 



98. POLEMONIACEAE- Vent. Phlox Family 



* Herbs" with altemaie or opposite feav^isiand' rejgulac 5-meroTis' flowers. 

 Calyx persistent, ii]H)^6kte'd. Coifplla coaYoliille in th^ l)ud. ^ Stamens dthei" 

 equally or upieqiially inserted. Ovary $7Cp|Je4j|(j>Fitf^ 3-lobed styjc;^ Po(J 3r 

 celled, 3-ovuled, iloculicidal;lfew-manyTseededin, Seed coat' frequently mucir 

 laginous when moistened' indl eirdttingspijfal threads. '' ■ • ; , i 



J^veasimjple andientire, often !crQ*Kde4 or xiabric?i'ted.i r , -i ) \ , 



■ Perennials with opposite leaves; ..... . j.-i , . ,. ... \ - 



PerenntaU witii alternate leaves, or if annuals ine leaves either bppo- 

 , '"■'!■ ' site or alternate'.' \ '- ■ * .. ' i '..,.■■ ;^/ ■ . 



.\,\ ^temileafle^a Except for thepair.of cbtyl^ons; plantts very smaU,, j . 

 Stems leafy. . ' - ,^ 



Calyx not i^uptureti by the maturing capsule; stamiens unequally 

 '' '•' ibsertdd; bvules solitary ■ . . . '' , . ' . *" *' 

 I Calyx at length ruptur>e4 ,by the maturing capsule; stamens 

 equally, ins{ertea; ovules more than 1 jn eacljL ce^l, . . ,.. 

 Lciavespiii'n'at^'orpikiilatifid. '^ ^ ', , 



Leaves and, oaly^t-tfeethspinulose-tipped . , '. '. ; . 

 , Leaves and (^aJ^f^-ii^th- hetij^aceoKs, ■,,-[. . , ... 



• ■! . 'T'j r.-;- ,-m[('1 .l-i}i(!vA f! ■•■ ■: ■ ■ '.■• ' 'm ' :.' '■ >■ ' ^i: ,!i'. : 

 iJi.Ht i.'.^'.;j,,t-.I-".w..o,'i.-pHLdX L. -Phlox* -^ ;:.-!-■ -''i '^ '''-' ■ 



..«.,'jn".ii/. J; ,-". 1 



Perennials (except a few southern species, such as P. Drummondii of the 

 gardens), with opposite and ,sessile, , perfectly, entire ie^es, the floral often 

 alternate. Flowers cyin'ose, mostly 'bracte'drxli^ blusters terminal or 



croyycjpd ii;i.,the,]4pp^r axil^^ jCa,lyx narrow, somewhat prismatip, or plaitpd 

 and angled. Corolla salverform, T^ith. aUopg tufje, Stamei^^, very unequally, 

 inserted, in the Tbiibi^,,9f the. co;rQL(a, included. Capsul^ pyoi<ij, ,with sofljptimes^ 

 2 ovules, but |ripen,ing,only a single seed in each, cell. Our Rocky Moimjt^ili; 

 fornis are somewha-t suffrutesc^p;t,^ .chiefly with narrow or pdnut^,and'tliiQkkhr 

 margined leaves, and branches or peduncles mostly l-&owered.. 



Pulyiiiate qr <^«spitose. .'■ ■ . i - . ' i , u , ! 



FlowefS solitary, the annual growth 1-flowered. j,,,^ , ■ i 



Leavtes beset with woolly, cobwebby hairs. ' , ',,'; ,,,.. .;,, i 



,, .^ ^Rensely arachnoid-lanate; leaves scale-like, imbricate^. ,; . 

 ,,. ' Lea\^e3 4-ranked; (5oroll&-tube much Ionger,.th^i> the calyx , . 

 Leaves not 4-^rank:ed; cdrolla^tube'not longer than the calyx 

 Sparsely arachnoki-lanate or gl^brate; leaves subulate, often 

 ' bisulcat^i !>'/!.... i ■ ' ■ ■!.!'! ' -■ ..1 n: ( \ / 



OproDartube, n^vieh{]b;p^^',than the paljyx . . ' . . J 

 Corolla-tubebiitlittle ilany longer than the calyj^. 

 '"" Leaves '^atfedy -lafaWty ' ■'■. , ". " '. " ' , ' . ' '. ". 

 Ledkves igi!eeii)3Liid iglabrate '. ' ; ' . 

 ,LeaTes,i^ot.besef(]with;v^|ly cobwebby hairs, h/ i' 



Leaves hispid-ciliate and often glandular-pubescent. 

 Leaves not thick^ned-cartilagiuous on tjhe margins. 



Leaves bisulcate I oblorig-fidear ; ■ i . ^ .; . , i j , 

 Leaves plane, lance-linear ;i n /y. . ,. . ,i . ,. i 

 Leavies thick ened-cartilagi nous pn the margins 

 Leaves glabrous, only the inflbrescense pubescetx't, or the wHole 

 plant glabrate. n j i , . , i ! ^ ■ 



, , Leaves plane; flowers pedui^culate . : . . ' , . . ; ,. 

 , ^ Leaves involute; flowers, subsessile ..... 

 * ' FloweW not Solitary, the annual stems 2-several-flowered. 



i'St^ns'from a rhizome, erect; leaves bisulcate ' . . . '.' 

 . ,-,|Steins caespitose-spreading; leaver plane: : . , . i, . , , 

 Scarcely tufted, suffrutesceht or nearly herbaceous. 

 Glabrate or puberulent, not glandular. 

 . Stems few, slender, 1-3 dm; high . " .' . . . . . 

 ^^ .. Stems numerous, less thaii 1 dm. Iiigh . 



Pubescent and glandular. 

 ' Corolla-tube more than twice as long as the calyx. ' • 



.ii 'Fube^cenceminute ; . . , ' . . . , ''. 



Tj^Pubescencte coarse t ^ , . , '■■ . 



CbroUarriulbeless'thaii twice as long as^ithecaljrx . - •> .. 



1. P. bryoides,' 



2. P. muscoi'des. 



3. P. canteens; 



4. P.Hdc^dii."'' 

 ■5. P. glabrati; 



"6. P. condensata. 

 7. P. caespitQsa* ; 

 S. P. alyssifolia. , 



9. . P. muUiflora. 

 10. P. dei^reasa. 



Hi J P. aiidicola! ' ' 

 13. P. Kelseyi.' 



13. >F. longifolia. 

 14. -P^ cemua., <i 



ISv^P. puberula. •.' 

 16.|P.StanBburyi. 

 17.., P. nana. 



* The treatment of this genus is adapts 1 from Eliaa Nelson's excellent 

 Western North American Phloxe?," Niiith Ret?. Wyo. Agr'l College, 1899. 



' Kevision of 



