324 Bwertieae. 



A d u m b r. Caulis simplex , spithameus - pedalis. 

 Internodia 2 — 4uncialia. Sepala lanceolata, obtusa, corolla 

 duplo breviora, a calcaribus recurvis saepius margine tacta. 

 Corolla 3 — 4'" longa, basi lata, virescenti-pallida ; lobi 

 ovato-oblongi, tubum aequantes, apice recurvato obtuso. 

 Genitalia tubum aequantia; antberae minutae , globosae, 

 incumbentes, flavae; ovarium elliptico-oblongum, stigma- 

 tibus oblongo-linearibus brevissimis revolutis. 



L u s u s. Corolla 5fida. — Calcara in alpinis magis 

 elongata (Pall.). — Forma ramosa. — Caulis 2uncialis 

 lflorus (Camtschatka). — 



Patria. Sibiria. — Hab. in umbrosis humidis m. 

 Altaic. alt. 360' — 1200' (v. Ledeb. !); in pinetis arenosis 

 subudis cum Rhododendro davurico (Pall. !) citra Jenisei 

 fl. (Messerschm.), ultra fl. Jenisei per totam terram 

 divulgata (Pall.!); in Camtschatka (Gebhard!), ad sinum 

 Ochotzk (Steller). — Fl. Jul. — 



2) H. deflexa, caule erecto folioso, foliis 3 — 5- 

 nerviis, radicalibus oblongo-spathulatis in petiolum aeque 

 longum attenuatis, caulinis oblongo-lanceolatis acutis sub- 

 sessiiibus, floribus laxe confertis in cymam terminalem 

 umbellaeformem et ih verticillastra dispositis, calcaribus 

 cylindricis obtusis patentibus apice deflexis corolla 4fida 

 duplo brevioribus. — v. s. sp. 



S t n o n. S wer t. c o rniculata Micb. Amer. hor. 1. p. 97. — 

 Sw. deflexa Sm. in Rees Enc. — 

 Sw. Michauxiana R. S. 6. p. 130. — 

 Sw. americana Sprgl. syst. 1. p. 861. exc). syn. 

 Kth. — 



A d u m b r. Affinis praecedenti : Caulis vegetior, 

 viridior, strictior , tenuiter alatus (nec angulatus) ; rami 

 aut abbreviati aut elongati stricti, cauli subappressi (nec 

 laxi, patuli, apice cernui, ut in illius forma ramosa) ; 

 folia majora et latiora, ima conferta , laete virentia, longe 

 petiolata (in illa parvula, elliptica, subanthesi emarcida); 

 calcar diversum in hac curvo-descendens , demum curvo- 

 subadscendens, tenuiter cylindricum 1. conicum, obtusum, 

 crassiusculum , in illa corollam aequans , stricte patens 

 adscendensque ? tenuiter filiforme. 



L u s u s. Folia ovata. 



Patria. America arctica — Canada. Hab. in uligu 

 nosis Canadae (Mrs. Percival!), in terris Hudson-Bay 

 (Richardson ! , Drummond !) , Rocky Mountains (Drum- 

 mond!). — 



