Attention: Latin names used in this index originate from historic literature and in many cases do not correspond to modern botanical nomenclature.
Spirogyra heeriana --> Stachus italicaSpirogyra heeriana  | 
Spirogyra quinina  | 
Spirogyra tenuissima  | 
Spirotaenia acuta  | 
Spirotaenia bispiralis  | 
Spirotaenia closteridia  | 
Spirotaenia closteridia  | 
Spirotaenia condensata  | 
Spirotaenia condensata  | 
Spirotaenia eboracensis  | 
Spirotaenia endospira  | 
Spirotaenia endospira  | 
Spirotaenia fusiformis  | 
Spirotaenia minuta  | 
Spirotaenia minuta  | 
Spirotaenia obscura  | 
Spirotaenia obscura  | 
Spirotaenia parvula  | 
Spirotaenia tenerrima cf.  | 
Spirotaenia trabeculata  | 
Spirotaenia truncata  | 
Spirotaenia turfosa  | 
600 dpi high resolution scan (TIFF image) Spirulina major  | 
Spirulina major  | 
Splachnum ampullaceum  | 
Splachnum ampullaceum  | 
Splachnum ampullaceum  | 
Splachnum ampullaceum  | 
Splachnum ampullaceum  | 
Splachnum ampullaceum  | 
Splachnum angustatum  | 
Splachnum brewerianum  | 
Splachnum froehlichianum  | 
Splachnum luteum  | 
Splachnum luteum  | 
Splachnum luteum  | 
Splachnum luteum  | 
Splachnum mnioides  | 
Splachnum rubrum  | 
Splachnum rubrum  | 
Splachnum sphaericum  | 
Splachnum sphaericum  | 
Splachnum urceolatum  | 
Splachnum vasculosum  | 
Spondias mombin  | 
Spondylosium secedens  | 
Sporledera lacustris  | 
Sporledera lacustris  | 
Sporochnus pedunculatus  | 
Sporochnus pedunculatus  | 
Sporodinia aspergillus  | 
Spraea thunbergii  | 
Spraea thunbergii  | 
Sprekelia  | 
Sprillum cholerae asiaticae  | 
Sprogyra  | 
Spumaria alba  | 
Spyridia filamentosa  | 
Spyrogyra stictica  | 
Stachus italica  |