Mindblown: a blog about philosophy.

With four angles in cross-section.  

With four long stamens and two short ones (as in Cruciferae/Brassicaceae). When having six stamens, two of them shorter than the rest.  

Group of four pollen grains (formed from a single pollen mother-cell) that are released from the anther as one unit (e.g. in Drosera). A cluster of four pollen grains released from the anther as a single unit. A group of four spores formed from a spore mother cell after meiosis. The four cells resulting from…

(Adject) of the testa.  

The outer coat of the seed (the inner coat is the tegumen). The seed coat, that is, the hardened mature integument.  

(Of surfaces) with markings in squares or rectangles (as on the petals of Fritillaria).  

(Adject.) third-order, one order down from secondary; for example, tertiary venation of a leaf or leaflet; (Noun) (plural tertiaries) side-branches of the main branches. Third, coming after secondary and primary.  

On or in the ground. Growing in the ground, the way most plants do, rather than perched in trees. Growing in the ground, the way most plants do, rather than in water (aquatic) or perched on trees (epiphytic).  

(Colour) brownish or dull orangish-red.  

(Of a 2-dimensional structure) divided in three to the base.