CLASS I. 
INDIVIDUAL ABSOLUTE TERMS. 
465 
leaflets are arranged, proceed in twos from the summit of 
a common petiole ; as in Mimosa purpurea. Mirh. 
17. Bigeminate (bigemmatus, hiconjugatus) \ when each of two 
secondary petioles bears a pair of leaflets; as in Mimosa 
unguis Cati. Mirh. 
18. Tergeminate {tergeminus, \ 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 f Mul- 
tidigitato^pinnatus, are rarely used, but are obvious modifica- 
tions of the last. 
21. Bipinnate (hipinnatus, \ duplicato-pinnatus)\ when the leaflets 
of a pinnate leaf become themselves pinnate ; as in Mimosa 
Julibrissin, Fumaria officinalis, &c. 
22. Biternate (hiternatus, f duplicato-ternatus) ; when three 
secondary petioles proceed from the common petiole, and 
each bears three leaflets; as in Fumaria bulbosa, Imperatoria 
Ostruthium, &c. Mirh. 
23. Triternate (triternatus) ; 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 Phellandrium. 
25. Paired {conjugatus, unijugvsy \ 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 (suhramosus) ; having a slight tendency 
to branch. 
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