240 F. Pax u. R. Knuth. — Primulaccao. 



Gaz. XXXIII. (4 902) 2 11. — Planta 5 — 25 cm alta. Rhizoma obliquum crassitie pennae 

 anserinae, brunneum, radicibus exs. fuscis, vix carnosulis dense vestitum. Folia plus 

 minus late ovata, in petiolum laminae aequilongum vel breviorem subito contracta, glabra, 

 acutiuscula, cartilaginea vel membranacea, cartilagineo-dentata vel fere integra, 2 — 5 cm 

 longa, 7 — 15 mm lata. Scapus foliis 1 — 3-plo longior, sub fructu elongatus et tum 

 — 5-plo longior; umbella 2 — 3-flora; pedicelli 1 — 2, sub fructu — 3 cm longi, glanduloso- 

 puberuli glandulis puberulis; bracteae 3 mm longae, subulatae. Calycis usque ad 

 mediain partem partiti laciniae deltoideae, acutae; corollae violaceae lobi oblongo-lineares, 

 1 5 mm longi ; filamenta in tubum conjuncta , inclusa. Capsula calyce 2-plo longior, 

 manifeste operculata. 



An beiden Küsten der Behringsstraße: St. Lorenzbusen (Chamisso a. 1828!, 

 Au. et Ar. Krause n. H"!, Blaisdell nach Eastwood); Port Clarence (Kjell- 

 mann, Vega-Exped. !); Arakamtchetchene Isl. (Wright, Herb, of N. S. N. Pac. Explor. 

 Exped.!). Blühend im Juli u. August. Zweifelhaft Oregon (Howell's Pacif. Coast. PI.!), 

 Utah (Eaton n. 218!). 



10. D. acuminatum Rydberg in Mem. N. York Bot. Card. I. (1900) 304. — 

 Scapus 10 — 15 cm altus. Folia oblongo-elliptica, 5 — 6 cm longa, sensim in petiolum 

 brevem attenuata, plerumque obtusa, integra, puberula. Umbella 3 — 5-flora. Bracteae 

 lanceolatae, membranaceae. Calycis in pedicellum sensim acuminati laciniae lanceo- 

 latae; corollae albae, purpureo- vel roseo-tinctae lobi lanceolati, 12 — 4 5 mm longi, 

 acuminati; stamina plerumque libera, tubus vix 1 mm longus, antherae 6 — 7 mm longae; 

 connectivum purpureum, basi latum et rugulosum. 



Montana: Missouri Biver oberhalb der Mündung von Sand Coulee (Anderson 

 a. 1 885). — Herb, of Columbia Univ. 



Nota. Species similis foliis D. cylindrocarpo et calyce D. Cusiekü, a quibus auteni 

 diversa staminibus, eis D. conjugentis similibus. 



H. D. campestre Howell, FI. N.-W. America I. (1897) 432. — Glaberrima. 

 Folia oblonga, obtusa vel acutiuscula, 2'/2 — S cm longa, in petiolum late alatum sensim 

 coarctata. Scapi 7,5 — 12,5 cm alti, 1 — 3-flori. Bracteae lanceolatae, acuminatae, 

 2,5 — 7,5 mm longae. Pedicelli 10 — 15 mm longi. Calycis laciniae lanceolatae, acutae, 

 5 mm longae; corollae lobi anguste oblongi, apicem versus angustati, 15 — 17,5 nun 

 longi, 2,5 mm lati vel latiores, albidi, medio coerulei, basi albi; filamenta brevissima; 

 antherae lineari-oblongae, obtusae, albidae, basi intense purpureae. Capsula oblonga, 

 5 valvis dehiscens. 



Washington: Klickitat Co., auf den Klickitat-Hügeln. 



12. D. cylindrocarpum Rydberg in Mem. N. York Bot. Card. I. (1900) 305. — 

 Scapus saus robustus, 10 — 20 cm altus. Folia 5 — 10 cm longa, oblongo-oblanceolatii. in 

 petiolum alatum sensim attenuata, plerumque obtusa, carnosula, medio nervo incrassata, 

 glabra. Umbella 4 — 7-flora. Bracteae lanceolatae, 5 — 8 mm longae. Calycis lacini.i.- 

 lanceolatae, 5 mm longae; corollae tubus luteus, lobi coeruleo-purpurei, oblongi w\ 

 lanceolati, obtusi vel acuti, 12 — 15 mm longi; filamentorum tubus brevissimus, 1 nun 

 vix superans; antherae lineari-oblongae, 6 — 7 mm longae, acutae; conneolivnin lanceo- 

 lato-acuminatum, usque ad apicem antherarum intense purpureum. Capsula < -ylindrica, 

 15 — 20 mm longa vel longior, 5 mm diam., primo operculo, tum 5 valvis dehiscens 

 (ex Rydberg). 



Felsengebirge, auf fruchtbarem Boden der Thäler höherer Regionen, 1500 — 

 2500 m: Montana, Missouri River oberhalb der Mündung von Sand Coulee (Anderson 

 a. 1885), Bridger Mountains (Bydberg und Bessey n. 4674, 4675), Great Falls 

 (Williams n. 781); Yellowstone Park, Indian Creek (Tweedy n. 432 ex pte.); 

 Washington, Snogalme Pass (Tweedy a. 1882). 



Nota. Species D. jtaiieifloro similis, sed dislincta foliis latioribus et crassiusculis . lila- 

 mentis multo breviorihu-. 



13. D. glastifolium Greene in Erythea III. (1895) 71. — Caudex depressus, 

 parvus, radices parvas breves emittens. Folia pauca, plerumque oblongo-lanceolata, 



