84 



Tribe 16; Amheestie^. — Leaves abruptly or rarely imparipinnate, 

 2 or many or very rarely 1-foliolate. Calyx-lobes free to the disk, 

 imbricate or very rarely valvate. Petals 6 or fewer or none. 

 Anthers versatile. Ovary stipitg^te, adnate vrith. the calyi tubes 

 bearing the disk ; ovules 3 or many. Examples : Tamarindus, ScJiotia, 

 Saraca, the Tamarind, Boerboom {Jonesia, synonym for Saracd), one 

 of the most beautiful of our garden trees. 



Tribe 17. CxNOMETEEiE. — Leaves abruptly pinnate 2 to many 

 foliolate. Calyx-lobes free to the disk, imbricate or valvate. Petals, 

 1, or 5 or fewer or none. Anthers versatile. Ovary 1 to 4-ovulate. 

 Flowers usually small. Example : Qynometra, this tropical coast tree 

 is probably the only example obtainable in Queensland. 



Tribe 18. Dimoephawdeeje. — Leaves bipinnate or very rarely 

 simply pinnate. Elowers small, irregular in paniculate cylindrical 

 spikes, sessile or very shortly pedicellate. Calyx campanulate, 5-fld. 

 Petals 5, imbricate. Anthers versatile. Ovary with numerous ovules. 

 Example : Hrythrophlcdum, or the so-called Leguminous Ironbark of 

 Leichhardt, a tree of Tropical Queensland. 



SUBOEDEE III. MIMOSE^. 

 Plowers, 5-merou9, 4-merous, or rarely 3-merous, or 6-merous, 

 small, regular, sessile in spikes or heads, or very rarely shortly pedi- 

 cellate, often polygamous. Sepals valvate, often united. Petals 

 valvate, except in Parkia, often united. Stamens, equal to or double 

 the number of the petals or indefinite. Seeds usually flattened, with 

 a hard, shining testa. Albumen none or very scanty. Badicle of the 

 embryo short and straight. Leaves bipinnate,' except in the 

 American genus Inga. The important products of this suborder are 

 timber, bark for tanning, gums, and flowers for perfumes. 



Tribe 19. PAEKiEiE. — Calyx-teeth very short, broad, imbricate, 

 corolla, 5-fid. Stamens, 5 or 10 ; anthers with a deciduous apical- 

 gland. No examples to be had in Queensland. 



Tribe 20. Adenantheeeje. — Plowers most frequently 5-merous. 

 Calyx valvate. Stamens 10 (rarely 5) ; anthers with a deciduous 

 apical gland. Examples : lEntada, Prosopis, and Neptunia, Match- 

 box bean, Algaroba, and Queensland Sensitive Plant, abundant about 

 the Darling Downs and Ipswich. 



Tribe 21. Eumimose^. — Plowers 4-5-merou8, rarely 3 or 

 6-merou8. Calyx valvate or pappiformis, or none. Stamens 5 or 10 

 (4-8) ; anthers without apical glands ; pollen granular. Example : 

 Mimosa, the common Sensitive Plant, found naturalised in many parts 

 in Queensland. 



Tribe 22. AcACiEiB. — Plowers, 4-5-merous, rarely 3-6-merous. 

 Calyx valvate, very rarely none. Stamens numerous, frequently very 

 numerous, free or consolidated at base only with disk ; pollen-grains 

 cohering in masses. Examnle : Acacia, any Myall, Brigalow, or 

 Wattle. 



Tribe 23. Ikgeje. — Plowers most frequently 5-merous. Calyx 

 valvate. Stamens numerous, frequently very numerous, rarely 10 to' 

 15; anthers small; filaments united more or less in a tube; pollen- 

 grains cohering in masses. Examples : Alhizzia, Calliandra, and 

 Inga ; this latter has simply-pinnate leaves. The first, " Woman's 

 tongue " tree, is largely planted for shade. 



