Providing accurate figures for the number of specimens held in the collections is a surprisingly difficult task when faced with such a large volume of material.
Current estimates are given here but these will doubtless be revised as more progress is made towards databasing the whole collection.
|Red algae (Rhodophyta)||120,000||5,500|
|Brown algae (Phaeophyceae)||50,000||2,000|
|Marine green algae (Chlorophyta)||35,000||1,500|
|Freshwater and terrestrial green algae (Charophyta)||18,000||800|
|Cyanobacteria (Cyanophyta)||8,000||not estimated|
|Other groups (including euglenoids and xanthophytes)||1,000||10|