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Francesco & Helga
The adventure goes on ... After the instructive trip to Baja California in 2014, followed by regular sowing and renewed enthusiasm in cultivation. My wife and I are already planning a new study trip that probably will take place in 2017 in the land of Arizona. So we recommend to all lovers of this wonderful gender of staying tuned to these "frequencies" because here ... the adventure continues !!!
All Happy Surfing!
The Gender Ferocactus was founded by BRITTON and ROSE and reported in their classic work "THE CACTACEAE" published in four volumes between 1919 and 1923. The classification we have chosen for this website is basically the one initiated by Nigel Taylor in his review of 1984 (and subsequently the John Pilbeam's and Derek Browdery's up–to–date publication Ferocactus of 2005) and then by preliminary studies based on the morphology of the seeds in the journal Bradleya and the Taylor's and Jonathan Y. Clark's one of the previous year. The result is the division of the gender in two sections each containing two groups:
The ripe fruits are red, pink or purple, rarely yellow or whitish, inside they are very juicy and sweet, they do not open with a half baseline hole but sometimes by breaking near the apex and expelling the seeds with the liquid of the fruit; the seeds have a thin and narrow ring hilarious, brown or black, very bright, often shorter than 2 mm. Example: Ferocactus latispinus
GROUP OF Ferocactus ROBUSTUS
The spines are generally numerous (more 'than 10 per areola) and often differentiated, ranging from large to fine, from silky to robust. The seeds have reproductive flat, shallow or deep cells, the walls are sometimes warty. The group includes: Chrysacanthus F., F. cylindraceus, fordii F., F. gracilis, johnstonianus F., F. pilosus, F. robustus, peninsulae F., F. viridescens, F. wislizeni.
GROUP OF Ferocactus POTTSII
The spines are even 10 per areola, more or less fine. The seeds have reproductive tabular and concave cells. The group includes: Diguetii F., F. emoryi, lindsayi F., F. pottsii.
I frutti maturi sono rossi, rosa o violetti, raramente gialli o bianchicci, interiormente sono molto succosi e dolci, non si aprono per mezzo di un foro basale ma qualche volta rompendosi vicino all'apice ed espellendo i semi con il liquido del frutto; i semi hanno un sottile ed angusto anello ilare, marrone o nero, molto brillante, spesso più corto di 2 mm. Esempio: Ferocactus latispinus
GROUP OF Ferocactus glaucescens
Clustered or solitary body with more than 20 ribs; spines are more or less straight. The seeds are very smooth with reproductive tabular or very deep cells. The group includes: Alamosanus F., F. echidnas, flavovirens F., F. glaucescens, F.schwarzii.
GROUP OF Ferocactus LATISPINUS
Solitary sometimes very wide body; with central spines often crushed by the back to the belly, straight or curved, or recurvate with a hooked apex. The seeds have reproductive concave cells. The group includes: Haematacanthus F., F. hamatacanthus, histrix F., F. latispinus, macrodiscus F., F. recurvus.