SOME CHROMOSOME COUNTS IN THE EUROPEAN CISTACEAE 155 



LIST OF CHROMOSOME NUMBERS DETERMINED n 2n 



HALIMIUM (Dunal) Willk. 



ocymoides (Lam.) Willk. & Lange 



Sintra, Merces, Estremadura, Portugal (Estagao Agronomica Nacional, Sacavem, Portugal) 18 



halimifolium (L.) Willk. & Lange 



Sesimbra, Apostica, Estremadura, Portugal (E.A.N.) 18 

 umhellatum (L.) Spach 



Alnaada, Corroios, Estremadura, Portugal (E.A.N.) 18 

 TUBERARIA (Dunal) Spach 

 vulgaris Willk. 



Sintra, Merces, Estremadura, Portugal (E.A.N.) 14 

 (Garden origin) 14 

 guttata (L.) Fourreau 



South Stack, Holyhead, Anglesey (D.E.C.) c. 36 



Three Castles Head, Co. Cork, Ireland (S.M.W.) 36 

 Bale des Trepassss, Finistere, France (CD. P.) 36 

 Sintra, Merces, Estremadura, Portugal (E.A.N.) 36 

 HELIANTHEMUM Adans. 

 apenninum (L.) Mill. 



Berry Head, Brixham, Devon 10 

 Purn Hill, Bleadon, Somerset (S.M.W.) 20 

 Les Andelys, Eure, France (S.M.W.) 20 

 St. Adrien, nr. Rouen, Seine-inf., France (S.M.W.) 10 

 chamaecistus Mill. 



Hod Hill, Blandford, Dorset 20 

 Chilham, Kent (C.D.P.) ' 20 



Risby Poors Heath, Suffolk 20 

 Holywell Mound, Lines. 20 

 Millington Pastures, Yorkshire Wolds, E. Yorks. (M.E.B.) 20 

 Gordale Scar, Malham, W. Yorks. 20 

 Humphrey Head, Grange, N. Lanes. 10 

 Near Aberfeldy, Perthshire (M.E.D.P.) 20 

 Ballintra, Co. Donegal, Ireland (S.M.W.) 20 

 Sta. Comba Dao, Beira Alta, Portugal (E.A.N.) 20 

 Domodossola, N. Italy (C.D.P.) 20 

 Visp, Wallis, Switzerland (C.D.P.) (H. grandiflorum (Scop.) DC.) 20 

 Donaueschingen, Baden, S.W. Germany (W.K.) (H. ovatum (Viv.) Dunal) 20 

 Bjergsted Bakker, Sjaelland, Denmark (T.W.B.) (H. ovatum) 10 

 Mt. Trebevica, nr. Sarajevo, Jugoslavia (W.K.) (H. tomentosum (Scop.) Spreng.) 10 

 ledifolium (L.) Mill. 



Sintra, Algueirao, Estremadura, Portugal (E.A.N.) 20 

 canum (L.) Baumg. 



Rhossili, Glamorganshire 11 

 Pabo, nr. Llandudno, Caerns. (S.M.W.) 11 

 Cronkley Fell, Teesdale, N.W. Yorks. (H.G.) 11 

 Scout Scar, Kendal, Westmorland 22 

 Poulsallagh, Co. Clare. Ireland (S.M.W.) 22 

 Poulsallagh, Co. Clare, Ireland (C.D.P.) 11 

 St. Adrien, nr. Rouen, Seine-inf., France (S.M.W.) 11 

 Oland, Sweden (T.G.T.) 22 

 Niissenberg, N. of Naumburg, Saxony, Germany (A.H.) 22 

 oelandicum (L.) Swartz 



Oland, Sweden (T.G.T.) 11 

 alpestre (Jacq.) Dunal 



Schynige Platte, Interlaken, Switzerland (T.W.B.) 11 

 lunulatum (All.) DC. 



(Garden origin) 22 

 FUMANA 



laevipes (L.) Spach 



Portinho, Serra dArrabida, Portugal (S.M.W.) 32 



