The simpler Fungi, like the simpler Green Algae, consist of single cells or simple or branched cell-threads, but among the higher kinds a massive body is often formed, particuTissue t~Jf larly in con nexion with the formation of spores, and, er~n,~,onthiS may exhibit considerable tissue-differentiation.
Some slight bond of conContinu- nexion was, however, necessary for defence against anee common dangers; and the Empire had existed so long, of the and so many great associations were connected with empire.
In Coleochaetaceae the branches are often welded into nexion with each whorl there arise, singly or in pairs, branches which a plate, simulating a parenchyma.
Through any point T in that line draw TV1, TV2, respectively paral- p, id to the simultaneous direction of Inotion of the pieces; through any other point A in the line of con- T nexion draw a plane perpendicular to that line, cutting TV~, TV2 in A V1 V2 then, velocity of piece I:
Nexion, and the line ViV2 represents their velocity relatively to each other.