172 



Eami patuli vei excurvi recurvique .._ ... ... ... ... 23 



22. Spicae crassae robustae; bracteas albo-marginatse ; spiculse eximie 

 distiche dense imbricatœ ; antheras sublineares (folia obovato- 

 spathiilata obtusissima mutica vel apice brevissime mucronata) 



St, Dodartii Girard, 

 Spicœ tenues graciles; bracteas (superior exteriőrei, einfima 

 2-plo longior) nitide rubello-marginatae; spiculse minus regulari- 

 ter laxiusque imbricatae ; antherae ovatae (folia lanceolato- 

 spathulata acutiuscula longiuscule setaceo-apiculata) 



St occidentalis Lloyd, 



23. Bractea infima acutiuscula; paniculae rami patuli 



St. lychnidifolia Girard. 

 Bracteae acutae (brunneae, rufescentimarginatas); spicœ 

 strictiusculs:'... ... ... ... .._ ... ... ._. ... St. densiflora Guss. 



(St. oxylepis Boiss.) 



24. Lobi calycini nervis validis rufescentibus limbum caeterum + 

 perdurantibus atque indurantibus percursi ___ ... .__ ... ... 25 



Lobi calycini nervi haud indurantes __. ... .._ .__ 27 



25. Calycis tubus spinis 5 apice hamatis (i. e. nervis cattero limbo 

 cito emarcido persistentibus valde induratis) patulis terminatus 

 (spiculae graciles longiuscule cylindraceae, curvulae, inter se valde 

 dissitee; herba tenella annua) __. .._ ^__ ... ... ... St. eclvoides L_ 



Limbus calycinus minus fugax, nervique calycini minus 

 rigidi nec ita manifeste hamati ; spiculae breviores ; herbœ 

 perennes .._ .__ ... .._ ... ... ... ___ ___ .._ ___ ... 26 



26. Limbi calycini nervi usque ad ajDicem loborum productif apice 

 uncinato-inflexi ; bractea infima suprema 3-plo brevior : 



Si. Companyonis Gren. 

 Limbi calycini nervi paulo ante apicem loborum evanidi 

 apice recti — -baud uncinatuli; bractea infima suprema 5-plo 

 brevior .._ ... ... _,_ ._. ... .__ ... .__ St. duriuscula Girard. 



27. Bracteae superiores acutae vel mucronulatae (folia margine 

 revoluta) ... ... __. ... ... ... ... ... ... .__ ... ... 28 



Bracteae superiores obtusissimae ... .__ ... ... 30 



28. Paniculae rami gracillimi patenti-recurvi ; folia majuscula 

 obovato-spathulata ... ... ... ... ... __. ... St. psiloclada Boiss. 



(St. panormitana Todaro.) 

 Paniculae rami strictiusculi firmiores ; folia parva... ... ... 29 



29. Bractea suprema infima apice patula 3-plo longior; limbus 

 calycinus tubum aequaus, lobis profutidis lanceolatis aoutis ; 



folia oblongo-spatbulata apica retusa vel emarginata _.. 5/, minuta L. 

 Bractea suprema infima adpressa 5-plo longior; limbus 



