l'rimula. 105 



Yun-nan: Bei'gwiesen auf Kalksubstrat am Che-tcho-tze oberhalb Tapintze, 2000 m 

 (Delavay n. 1 0J 6), am Hee-gni-chao bis Hokin (Delavay n. 225). 



131. Pr. pumila (Ledeb.) Pax in Englcr's Bot. Jahrb. X. (4 889) 208. — Pr. 



Kg var. pumila Ledeb. Fl. ross. III. (1847 — 49) 10; Regel in Acta horti petropol. 

 I. (1872) 389; III. (1874) 137. — Pr. mvaKs A. Gray, Synopt. Flora North Am. 0.4. 

 (1886 59 ex parte. — Pr. Tschuktschorum Kjelmann in Nordensk. Vega Exped. Vetensk. 

 Jairtt. I. (1882) 516 t. IX. — Humilis, gracilis, cfarinosa. Folia 3 — 7 cm longa, 2 — 

 4 mm lata, linearia, acuta, integerrima vel apicem versus subtiliter vel vix crenulata. 

 Scapus 3 — 6 cm longus, folia multo superans, post anthesin magis elongatus, strictus, 

 ctaiinosus, umbellam 1— 3-floram gerens; bracteae e basi lata acuminatae; pcdicelli 

 0,5 cm longi, sub fructu ad 1,5 cm accrescentes ; flores erecti. Calycis efarinosi, ad 

 8 nun longi, ultra medium fissi, purpurascentis, campanulati lobi lanceolati, acuti. Corollae 

 purpureae tubus calycem fere aequans, limbus ad 18 — 20 mm diametiens, lobi ovati, 

 retusi vel leviter emarginati vel integri. Capsula calycem paullo tantum superans, ob- 

 longo-cylindrica. Semina brunnea, papulosa. 



Tschuktschenlan d, Wiesen am Meere: Lorenzbai (Chamisso!, Kjellmann!), 

 Snetkehafen (A. und A. Krause, Reise Tschuktsch. n. 11 b !). 



Nota. Pr. pumila habitu Silenes spccies quasdam simulante et imprimis Capsula satis 

 brevi a Pr. nirali facile distinguitur. Species extra aream arcticam nullibi occurrit, et planta 

 Kochiana (cfr. Linnaea XXIII. (1850) 617) sub nomine Pr. nivalis var. pumilae enumerata 

 certissime non huc spectat, sed verisimiliter formam depauperatam alpinam Pr. niralis sistit. 



13 2. Pr. Aitchisonii Pax n. sp. — Pr. pwyurea Buser in Boiss. Fl. orient. Suppl. 

 (1888) 342. — Glabra, efarinosa, (sicca) cinereo- viridis. Folia petiolata, subcarnosa, 

 6 — 8 cm longa, 2 — 2,5 cm lata, oblongo-lanceolata, obtusa, integerrima, in petiolum 

 anguste alatum, lamina breviorem vel eam aequantem cuneato-attenuata. Scapus folia 

 aequans, 9 — 12 cm longus, umbellam 5-floram gerens; bracteae angustissimae, e basi 

 paullo dilatata iiliformi-attenuatae, \ cm fere longae; pedicelli post anthesin ad 3 cm 

 accrescentes, stricti. Calycis 1 cm longi, anguste campanulati, efarinosi, ad trienlem 

 partem tantum fissi lobi trianguläres, acutissimi. Corollae (purpureae?) tubus calycem 

 duplo fere superans, gracilis, cylindricus, limbus 2 cm diametiens, lobi obcordati, emar- 

 ginati. Capsula calycem aequans, cylindrica, 1 cm longa. Semina grisea, papulosa. 

 — Fig. 29 5, C. 



Afghanistan: Kurrum-Thal, bei Sikaram, 4000 — 5000 m (Aitchison n. 960!). 



Nota. In honorem cl. collectoris nominata. Habitus jam magis alienus quam in Pr. nirali. 

 a qua facile distinguitur foliis cfarinosis, integerrimis, subcarnosis, manifeste petiolatis, scapo 

 folia aequante, nee superante, umbella paueiflora, calyce minus profunde inciso, corollae tubo 

 elongato, Capsula calycem aequante. 



133. Pr. Cusickiana A. Gray, Synopt. Flor. North Am. ed. 2. IL I. (1886) 399; 

 Pax in Engler's Bot. Jahrb. X. (1889) 208. — Pr. angustifolia var. Cusickiana A. Gray, 



I. c. ed. I. (1878) 393. — Glabra, efarinosa. Folia ad 5 cm longa, oblongo-spathulata, 

 integra vel vix denticulata. Scapus 7 — 15 cm altus, umbellam 2 — 4-floram gerens; 

 bracteae 2 — 3, inaequales. Calyx viridis, inter lobos albo-striatus, campanulatus ; lobi 

 lanceolati vel subulati, tubum — aequantes. Corollae violaceae, rarius albae tubus 

 calycem aequans, lobi retusi. 



Pacifisches Nordamerika: Ost-Oregon, steinige Hügel in Union Co., im 

 zeitigsten Frühjahre blühend (Cusick). 



Nota. Speciem non vidi. E cl. autore Pr. angustifoliae arete affinis, sed major, robustior. 



134. Pr. angustifolia Torr, in Ann. Lyc. New York I. (1824) 34 t. 3 f. 3 ; 



II. (1825) 235: Duby in DC. Prodr. VIII. (1844) 40; A. Gray, Synopt. Fl. North Am. 

 ed. 2 (1886) IL 1. 58, 399; Pax in Engler's Bot. Jahrb. X. (1889) 208. — Pr. an- 

 gustifolia var. Helenae Pollard et Cockerell in Proceed. biol. soc. Washington XV. (1902) 

 179. — Pusilla, minuta, efarinosa. Folia cum petiolo 1 — 3 cm longa, 3 — 8 mm lata, 

 lineari-lanceolata vel lanceolala, obtusa, integerrima, in petiolum brevissiniuin. immo lamina 

 lmviorem attenuata. Scapus brevissimus, 1 — 1,5 cm altus, folia aequans vel brevior, 



