270 Bornmüller, Plantae Straussianae. 



Centaurea {Acrocentron-Rhisanthae) macrocarpa Boiss. — Boiss. 

 fl. Or. III, 677. 



Kum, in ditione oppidi in collibus arenosis; V. 1899. — Gul- 

 paigan, in desertis; 25. V. 1898. 



Centaurea {Balsamitophyllum) JBalsamita Lam. — Boiss. fl. Or. 

 III, 679. 



Kurdistan, inter Hamadan et Kermandschah, in collibus prope 

 Kengower; 1896. 



Centaurea [Microlophus) Behen L. — Boiss. fl. Or. III, 682. 



Suitanabad, in montosis; VIII. 1890. — Ibidem, in fauce Girdu; 

 3. VII. 1892. — In monte Raswend; VIII. 1899. — In districtu 

 Silachor; 1896. — Luristania, in monte Schuturunkuh; VIII. 1899. — 

 Hamadan, in collibus meridionalibus montis Elwend; VII. 1897. 



/j) suhhractp.ata Boiss. — Boiss. fl. Or. III, 682. 



In monte Raswend; VIII. 1899. 



Centaurea (Mesocentron) solstitia/is L. — Boiss. fl. Or. III, 685. 



In monte Raswend; 1897 et 1898. — Ejusdem sectionis 

 species nova extra fines Persiae a cl. Strauss detecta: 



Centaurea (Mesocentron) Meso^jotamica Bornm. spec. 

 nov. 



Annua, griseo-subaraneoso-pubescens, a collo ramoso capitulo 

 centrali sessili, ramis (15 — 20 cm longis) paucifoliosis, elongatis, 

 decurrentibus, ramosis exalatis; foliis radicalibus lineari-lanceolatis 

 obtuse lobulato-pinnatifidis, rameis oblongis vel ovatis sessilibus 

 subintegris; capitulis mediocribus, ovalibus (10X12— 14 mm latis 

 et longis), praeter infimum sessile omnibus ad ramulos elongatos 

 terminalibus ebracteatis vel bracteolis 1 — 3 brevibus (quam capi- 

 tulum brevioribus) suffultis; involucri flavidi parce araneosi phyllis 

 infimis subinermibus, ceteris in spinulam tenuem ad basin pinna- 

 tam (utrinque 1 — 2-spinulosamT recurvatam vel patentem flosculis 

 (e sicco flavis) brevioribus abeuntibus; phyllis intimis apice non 

 scariosis; acheniis adpresse pubescentibus, pallidis; pappi setis 

 intermediis achenio duplo longioribus. 



In planitie fluvii Euphrat inter Hith et Anah et inter De'i'r et 

 Palmyra; 1 et 10. V. 1904. — Species nova a C. Postii Boiss. distat 

 phyllorum spinis basi pinnatis (non integerrimis) nee non rami- 

 ficatione (capitulis terminalibus, nee etiam in dichotomis sessi- 

 libusj; proxime affinis est C. Sinaicae DC, a qua (sec. specimina 

 Schimperiana) diff"ert foliis non decurrentibus, phyllorum spinis 

 multo brevioribus ad basin tantum pinnatis tenuissimis (nee 

 validis) recurvatis, phyllis intimis non scariosis, pappo quam achenium 

 longiore (non aequilongo). 



C. furfuracea Cosson, planta Africana, habitu similis et nostrae 

 speciei novae quoque affinis primo adspectu capitulorum bracteis 

 maximis valde radiantibus, spinis crassiusculis brevibus facile dig- 

 noscitur. 



Centaurea (Calcitrapa) Iherica Trev. — Boiss. fl. Or. III, 690, 



Suitanabad, prope Girdu; 20. IX. 1895 et 3. VII. 1892. — 

 Ibidem, in ruderatis hortorum ad urbem; 18. VII. 1889 et VIII. 1890. 



Berichtigung: Die von mir bei Jaffa i. J. 1897 gesammelte 

 als C. procurrens Sieb, ausgegebene Pflanze (Bornm. no. 934) mit 

 weithin niederliegenden Stengeln ist der stark spinnwebigen Köpfe 



