Saxifraga. — Sect. 1. Boraphila. — § 3. Nivali-virginienses. 27 



(Sagorski, Vräny — Herb. Breslau), Kopapaß (Wahlenberg, v. Uechtritz — 

 Hei-b. Berlin), Drechslerhäuschen (Ilse — Herb. Berlin), am Durlsberg (A. Engler — 

 Herb. Berlin, Läng — Herb. Breslau), Stirnberg (Haszlinsky — Herb. Berlin), zwi- 

 schen Novy und Havran über Podspady (Limpricht — Herb. Breslau; f. foliosa). — 

 3. Südliche Zentralkarpathen: Backova (Wahlenberg), Choc (Szontag), Boha£, 

 an Bachufern im Wald um 1200 m ü. M. (Lingelsheim — Herb. Breslau), Djumbir 

 Wahlenberg). — b. Ostkarpathen. — 2. Bodnaer Alpen: auf Matten des Verfu 

 Pietrosa um 2000 m, auf Glimmerschiefer (Web erbau er — Herb. Breslau), Dseame- 

 anie (Baumgarten Enum. I. 373), Stol (Herbich Flora der Bucovina 1859. V). — 

 3. Bistritzer Alpen: auf dem Injen (Kühhorn), um 2300 — 2400 m, bäuQg (Th. Kotschy 

 PI. Transsilvaniae Herbarii Schott n. 318, Andrä — Herb. Berlin, Vierhapper — 

 Herb. Univ. Wien, v. Haynald — Herb. Berlin). 



Var. Rydbergii (Small) Engl, et Irmscher. — £. Rydbergii Small ex Bydberg in 

 Mem. New York Bot. Card. I. (190 0) 194. — Micranthes Rydbergii (Small) Small in 

 North Amer. Fl. XXII. 2. (1905) 134. — Caules floriferi 5—10 cm longi. Flores 

 minores; sepala ovata vel triangulari-ovata, circ. 1,3 — 1,6 mm longa; petala 1 — 1,5 mm 

 longa. 



Pazifisches Nordamerika — Prov. der Bocky Mountains — Nördliche 

 Rocky Mts.: Yellowstone Park, Electric Peak, an felsigen Stellen um 3000 m (Byd- 

 berg u. Bessey n. 4268. — Herb. New York Bot. Gard.). 



Nota: Characteres a clo. Rydberg citati, a foliorum et sepalorum vcstimento desumpli 

 non exstant. Yarietas solum caule minore et floribus parvis differt. 



14. S. rhomboidea Greene in Pittonia III. (1898) 343; Rosendahl in Engl. Bot. 

 Jahrb. XXXVII. Beibl. n. 83 (1905) 67; Coulter and Nelson, New Man. of Bot. Central 

 Bocky Mount. (1909) 240. — Micranthes rhomboidea (Greene) Small in North Amer. 

 Fl. XXII. 2. (1905) 137. — Perennis, rhizomate gracili breviusculo suberecto vel ascen- 

 dente valde fibrilloso apice rosulatim foliato, caulem floriferum scapiformem, solitarium 

 terminalem rarius (in Var. Greenei) vel complures 0,5 — 3,3 dm longos, erectos, saepe 

 paulum flexuosos, laeves, nudos, superne capitulum formantes vel spieiformes vel plus 

 minusve paniculatos, tota longitudine, attamen superne multo densius brevissime glandu- 

 loso-pubescentes emittente. Folia basalia subereeta vel recurva, crassiuscula, saepe 

 subtus purpurascentia, Costa tantum conspicua, lamina glaberrima, vel rarius subtus 

 ■sparsim, praeeipue apicem versus ferrugineo-crispulo-pilosa, margine glabra vel plus mi- 

 nusve ciliata, exteriorum vel interiorum lamina rhomboideo-ovata vel rhomboideo-oblonga, 

 rarius flabellato-orbiculari, inferiorum vel superiorum lamina ovato-ovali velovali, 1 ,2 — 4 cm 

 longa et 0,8 — 2,3 cm lata, leviter serrato-dentata usque repando-dentata, subacuta vel 

 •obtusiuscula, in petiolum lamina breviorem alatum basi dilatatum plus-minusve ciliatum 

 minus abruplius (quam in S. nivalis) contraeta. Inflorescentiae rami plerumque in 

 ■capitulum aggregati, in Var. interrupta remoti, inferiores internodiis breviores subses- 

 siles, in Var. Greenei longius peduneulati, ut caulis breviter pubescentes, bracteis bre- 

 vibus haud ultra 1 cm longis lineari-oblongis vel linearibus viridulis instrueti; pedicelli 

 etiam in fruetu floribus haud longiores, saepe subnulli, densiuscule glanduloso-pilosi, 

 prophyllis linearibus minutis suffulti; sepala non reflexa, subereeta, ovata usque trian- 

 gularia, 1,5 — 2,3 mm longa, medio 0,7 — 1,5 mm lata, obtusa, glabra, trinenria, nerto 

 medio apice incrassato, saepe purpurascentia; petala obovata vel oblongo-obovata, ple- 

 rniiique duplum sepalorum aequantia (in Var. crenatifolia autem sepalis aequilonga), 

 "s'iue 4,5 mm longa et 2 mm lata, obtusa, basi euneatim contraeta, trinervia, alba; 

 staminum filamenta dimidium petalorum metientia vel breviora, subulata vel linearia: 

 ovarium late ovoideum, ad i / 3 — '/j longitudinis inferura, in stilos 0,7 — I mm longos, 

 stigmate parvo coronatos minus abrupte contractum. Capsulae carpella oblonga ad 

 1 j longitudinis vel ultra infera, usque ad calycem Hbera, 3,5 — 5 mm longa, apice di- 

 varicata, sepalis haud reflexis instrueti; semina oblonga, 0,6 — 0,7 mm longa, utrinqu<- 

 subacuta, laevia, brunnea. 



