Chondrilla. composit^. 793 



phyllis linearibus, acheniis cylindrico-prismaticis striatis apice parce. 

 muriculatis ecoronulatis brevissime et crassiuscule rostratis @. 



Hab. in lapidosis ad fluvium Sarafschan Turkestanire prope Samarkand 

 (Lehm!). 



Pedalis, capitula magnitudinis C. juncece involucri phyllis 4 lineas longis. 

 Inter specles rostro brevissimo et pappo inde subsessili donatas differt a Ch. 

 leiospermd cap^itulis multo majoribus phirifloris brevius et crassias rostratis, 

 a C. paucifiord flosculis paucis et involucro canescenti nec glabro. 



4. G. pauciflora (Ledeb. Fl. Alt. IV, p. 148) radice verticall, 

 caule a basi ramosissimo ;ramis tenuiter virgatis elongatis flexuosi» 

 demurn aphyllis, foliis radicalibus subruncinatis cito evanidis, caulinis 

 et rameis anguste linearibus demum deciduis, capitulis terminalibus 

 longiuscule pedunculatis cylindricis subsexfloris, caiyculi basi subca- 

 nescentis phyllis squamiformibus minimis involucri glabri linearibus, 

 acheniis cylindrico-prismaticis striatis versus apicem coronula desti- 

 tutum minule et parce muriculatis vel laevibus, rostro nullo vel bre- 

 vissimo crassiusculo 0. Ic. Ledeb. tab. 198.— C. ambigua Fisch. et 

 C. intyhacea Ledeb. Fl. Ross. 11, p. 809 non Friv. 



Hab. in desertis Turkestanise ad lacum Aral (Lehm.). 



Ar. Geogr. Rossia austro-orientalis, Songaria, Sibiria Uralensis. 



5. G. piestocarpa, radice verticahVcaule glabro a basi ramo- 

 sissimo ramis tenuiter virgatis elongatis flexuose ramulosis, foliis 

 inferioribus...., rameis brevissime et anguste Jinearibus squamulifor- 

 mibus, capitulis terminalibus longe pedunculatis minutis oblongis 

 8-9-floris, calyculi involucro triplo brevioris phyllis angusie lanceo- 

 latis, involucri glabri linearibus obtusis, acheniis parvis compressis 

 lineari-ellipticis striatis basi subangustioribus apice in rostrum bre- 

 vissuuum fragile breviter attenuatis, pappo achenio longiore 0. 



Hab. in regione montana et alpinii, prov. Khorassan Persise inter Nischapur 

 et Meschhed (Bge !), in Belutschia (Stocks, quantum ex specimine incompleto 

 dijudicandum). 



Dumus sesquipedalis, capitula illis C. junceoe breviora involucri phyllis vix 

 3 lineas excedentibus. Achenia cum rostro sesquilineam longa compressa qua 

 nota a C. panciflord facie affini et omnibus congeneribus distat. 



HETERODERIS. — Barckhausia Sect. Heteroderis (Bge Pl. 

 Lehm. p. 384). 



Capitulum multiflorum. Involucrum calyculatum. Receptaculum 

 nudum. Achenia biformia, radii erostria parce papposa vel epapposa, 

 disci prismatica superne ad costas squamuloso-muricata rostro fili- 

 formi iongo superata. — Herbse annuae pumilse facie Crepidis cerniUE. 

 — Genus a Barckhansid acheniis centralibus squamuloso-muricatis 

 longe distans, multo magis ChondrilUe habitu toto, capilulis multiflo- 

 ris distinctee affinis. 



