Bupleurum. 121 



50. B. longiinvolucratum (B. longeinvolucratum) Krylov, PI. altaic. nov. II. in 

 Act. Hort. Petrop. XXI. (1903) 17. — >Rhizoma crassum, repens, ramosum«. Caules 

 2—3, erecti, simplices, 25 — 35 cm longi. Folia basalia et caulina inferiora valde 

 elongata, caule non multo breviora, linearia, acuta, basin versus (ut?) in petiolum 

 angustata, 2 — 25 cm longa, 3 1 / 2 — 6 mm lata, media superioraque lineari-lanceolata, 

 acutissima, basi parum dilatata, amplexicaulia. Umbella terminalis (simulque unica) 

 5 — 7-radiata, 5 — 7 cm lata; involucri phylla 2 lanceolata, longe acuminata, inaequalia, 

 alterum umbellam =b aequans, 4 J / 2 — 6 cm longum, alterum subduplo brevius. Um- 

 bellulae ca. 1 5-florae, 6 — 10 mm latae; involucelli phylla 5 — 6 viridi-lutescentia, elliptica 

 vel ovato-lanceolata, 12 — 15 mm longa, 5 — 7 mm lata, umbellulas subduplo supe- 

 rantia. Fructus plane maturus non visus; juga elevata; vittae valleculares solitariae, 

 commissurales 2. 



Westsibirien: »in jugo Tigerekski-belok, montium Altaicorum occidentalium in 

 declivibus saxosis, infra limitem sylvarum; fruct. immat. mense Julio«. 



Nota. Specimina non visa; stirps sec. cl. Krylov maxime affinis B. ranunculoidi et 

 B. multinervi, a quibus foliis longissimis angustisque et forma phyllorum involucri et involucelli 

 satis differre dicitur. 



51. B. Bourgaei Boiss. et Reut, in Boiss. Diagn. ser. II. 2. (1856) 84; Lange 

 in Willk. et Lange, Prodi*, fl. hisp. III. (1874) 74. — B. gramineum f. laxiusculum 

 Deb. et Reverch. in litt, ex Bull. Acad. intern, geogr. bot. XV. (1905) 95. — B. pani- 

 culatum Bourg. in sched. — Basi vix suffruticosum. Caudex valde elongatus, 2 — 

 3 mm crassus, reliquiis foliorum emortuorum satis dense obtectus, pluriceps, in radicem 

 funiformem longissimam transiens. Caules plures, interne subprocumbentes, superne 

 ascendentes, 50 — 60 cm longi, tenues, inferne simplices, superne ramis zt elongatis, 

 erecto-patentibus, subsimplicibus vel parce breviterque ramulosis instructi. Folia in- 

 feriora sub fructu maturo plerumque jam emarcida, conferta, anguste linearia, postice 

 vix angustata, basi ipsa valde dilatata amplexicaulia, apice acuta, nervis 5 — 7 paral- 

 lelis percursa, usque 20 cm longa, zkz 2 mm lata, superiora similia, valde remota, cito 

 decrescentia, suffulcientia ramis 2 — 3-plo breviora. Umbellae haud numerosae pedun- 

 culo stricto, tenui, 4 — 6 cm longo suffultae, 4 — 5-radiatae, radiis inaequalibus, fili- 

 formibus, majoribus usque 3 cm longis, involucri phylla 2 — 3, linearia vel subulata, 

 5-nervia 2 — 5-plo longitudine superantibus. Involucelli phylla lanceolata, abrupte brevi- 

 terque acuminata, 5-nervia, dz 4 mm longa, umbellulis parvis, compactis, 2 — 3 mm 

 latis, 10 — 1 5-floris paullo longiora. Pedicelli aequilongi, flores aequantes, fructibus 

 (haud plane maturis) paullo breviores; petala trapezoidea, dorso eleganter reticulato- 

 venosa, lobulo inflexo subquadrato dimidio breviore. 



Bisher nur von der iberischen Halbinsel bekannt: Spanien, Murcia »in 

 cacumine montis Padron de Bien Servida prope Riopar, Sierra de Pinar«, 1800 m, 

 (Bourgeau, PI. Esp. (1850) s. n.; Granada (Reverchon, PI. Esp. n. 1200, B. 

 ranwiculoides var. laxiuscula). 



Nota. Stirps B. ranunculoidi var. gramineo proxima et forsan melius cum B. rattun- 

 culoidi sub titulo varietatis conjungenda; differt habitu, foliis exacte aequilatis, valde elongatis, 

 ramis longioribus divaricatis, umbellulis parvis compactis, forma petalorum et eorum nervatura. 



52. B. thianschanicum Freyn in Mem. Herb. Boiss. (1900) XIII. 23. — Planta 

 viridis, caudice reliquiis foliorum emortuorum obtecto, ramoso, pluricipiti. Caules 

 plures, ca. bipedales, erecti, laxe foliosi, superne remote racemoso-ramosi, ramis sub- 

 aequilongis, tenuibus, 2,5 — 4,5 cm longis. Folia erecta, plana, margine anguslissime 

 albo-scariosa, basalia sub anthesi jam emortua, ut videtur petiolo angusto longo suf- 

 fulta, caulina inferiora lanceolato-linearia, acuta, basi angustata amplectentia, 5 — 7- 

 nervia, ca. 10 cm longa, 4 mm lata, media similia, ca. 6,5 cm longa, 6 mm lata, 

 cetera gradatim minora, e basi dz dilatata ovato-elliptica, apicem versus acuminata, 

 breviter cuspidata, 9 — 1 1-nervia, superiora usque 2,5 cm longa, usque 8 mm lata, 

 summa 1 cm longa, 5 mm lata. Umbella terminalis 5 — 7-radiata, radiis gracilibus, 

 valde inaequalibus, 0,25 — 2 cm longis; involucri phylla 3 inaequalia, latiuscule lanceolata, 



