170 
Bornmüller, Plantae Straussianae. 
Centaurea ( Acrocenbron-Rhizanthae) 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 ) JBehen L. — Boiss. fl. Or. III, 682. 
Sultanabad, 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 Eiwend; VII. 1897. 
ß) subbracteata 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 ) Mesopotamica 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-spinulosam) 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'ir et 
Palmyra; 1 et 10. V. 1904. — Species nova a C. Postii Boiss. distat 
phyllorum spinis basi pinnatis (non integerrimis) nec non rami- 
ficatione (capitulis terminalibus, nec etiam in dichotomis sessi¬ 
libus); proxime affinis est C. Sinaicae DC., a qua (sec. specimina 
Schimperiana) differt foliis non decurrentibus, phyllorum spinis 
multo brevioribus ad basin tantum pinnatis tenuissimis (nec 
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 ) Iberica Trev. — Boiss. fl. Or. III, 690. 
Sultanabad, 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 
