392 
GLOSSOLOGY. 
BOOK nr. 
leaflets are arranged, proceed in twos from the summit of a 
common petiole ; as in Mimosa purpurea. Mirh. 
17. Bigeminate (bigeminatiis, biconjugatus) \ when each of two 
two secondary petioles bears a pair of leaflets; as in Mimosa 
unguis Cati. Mirh. 
18. Tergeminate (tergeminus, f tergeminatus) \ when each of two 
secondary petioles bears towards its summit one pair of 
leaflets, and the common petiole bears a third pair at the 
origin of the two secondary petioles ; as in Mimosa tergemina. 
Mirh, 
19. Thrice digitato-pinnate (f tridigitato-pinnatus, ternato-pin- 
natus) ; when the secondary petioles, on the sides of which 
the leaflets are attached, proceed in threes from the summit 
of a common petiole ; as in HofFmannseggia. Mirh. 
20. f Quadridigitato-pinnatus^ as in Mimosa pudica, and -|- Mut- 
tidigitato-pinnatus, are rarely used, but are obvious modi- 
fications of the last. 
21 . Bipinnate (bipinnatus^ \ duplicato-pinnatus) ; when the leaflets 
of a pinnate leaf become themselves pinnate ; as in Mimosa 
Julibrissin, Fumaria officinalis, &c. 
22. Biternate (biteriiatus, f duplicato-ter natus) \ when three 
secondary petioles proceed from the common petiole, and 
each bears three leaflets ; as in Fumaria bulbosa, Imperatoria 
Ostruthium, &c. Mirh. 
23. Triternate (triter natus) ; when the common petiole divides 
into three secondary petioles, which are each subdivided into 
three tertiary petioles, each of which bears three leaflets ; as 
the leaf of Epimedium alpinum. 
24. Tripinnate (tripinnatus) ; when the leaflets of a bipinnate 
leaf become themselves pinnate ; as in Thalictrum minus, or 
CEnanthe Pheilandrium. 
25. Paired (conjugatus, unijugus, f unijugatus) ; when the petiole 
of a pinnated leaf bears one pair of leaflets ; as Zygophyllum 
Fabago. Bijugus is when it bears two pairs ; as in Mimosa 
fagifolia: trijugus, quadrijugus^ quinquejugus^ &c. are also 
employed when required. Multijugus is used when the num- 
ber of pairs becomes very considerable ; as in Orobus sylva- 
ticus, Astragalus glycyphyllus. 
26. Branched (ramosus) ; divided into many branches : if the 
divisions are small, we say ramulosus. 
27. Somewhat branched (subramosus) ; having a slight tendency 
to branch. 
