MIMOSACEAE. 159 



serted; anthers small, glandular-hirsute or glabrous, the pollen grains agglom- 

 erate. Ovary many-ovuled; style filiform. Pod linear, usually narrowed below 

 the middle, flat, not pulpy within, straight or nearly so, elastieally dehiscent from 

 the base, the valves stiff with raised margins. Seeds obovate or orbicular, com- 

 pressed. [In honor of George Annesley, 1769-1844, English traveler and 

 botanist.] Over 100 species, of tropical and subtropical distribution. Type 

 species: Anneslia falcifolia Salisb. 



Flowers redto purple; pod appressed-pubescent. 1. A. haematoatoma 



Flowers white; pod glabrous. 2. A. formosa. 



1. Anneslia haematostdma (Bert.) Britton, Mem. Brooklyn Bot Gard 1- 



50. 1918; 



Acacia haematomma Bert.; DC. Mem. Leg. 448. 1825. 

 Calliandra haematomma Benth. Lond. Jour. Bot. 3: 103. 1844. 



A much-branched shrub 3 m. high or less, the twigs sparingly pilose or 

 glabrous. Leaves small, 1-3 cm. long; petioles short; pinnae 1 pair; leaflets 

 8-8 pairs, oblong to obovate, 4-8 mm. long, obtuse or mueronate, strongly few- 

 nerved, coriaceous; peduncles mostly pubescent, usually shorter than the 

 leaves, commonly clustered toward the ends of the branches; calyx striate, about 

 2 mm. long; corolla silky -pubescent, 5-7 mm. long; stamens red, 1-2 cm. long; 

 pod pubescent, 5-8 cm. long, 6-8 mm. wide. 



Scrub-lands and coppices, Abaco, Great Bahama, Hum Cav, Conception Island, 

 Fortune Island, Watling's, Caicos and Inagua : — Cuba to St. Thomas. Bud Anneslia. 



2. Anneslia formosa (Kunth) Britton & Millspaugh. 



Acacia fortnosa Kunth, Mim. 102. 1822. 



Calliamdra formosa Benth. in Hook. Lond. Jour. Bot. 3 : 98. 1844. 



Calliandra formosa, cubensis Macbride, Contr. Gray Herb. II. 59 : 4. 1919. 



A branched shrub, 0.5-2.5 m. high, glabrous throughout. Leaves 7-15 cm. 

 long; petioles 1-3 cm. long; pinnae 2 or 3 pairs; leaflets 6-11 pairs, oblong to 

 oblong-obovate, inequilateral, 10-22 mm. long, obtuse at the apex, obliquely 

 subtruncate at the base, subchartaeeous, few- veined; peduncles slender, shorter 

 than the leaves; calyx about 2 mm. long; coroUa glabrous, about twice as long 

 as the calyx; stamens white, 1-1.5 em. long; pod glabrous, 5-9 cm. long, about 

 1 cm. wide, attenuate at the base. 



Scrub-lands, coppices and thickets, throughout the archipelago from Abaco and 

 the Berry Islands to South Caicos, Inagua and the Angullla Isles ;— Cuba ; Mexico. 

 Eeeorded by Hitchcock as Calliandra gracilia Griseb. and, by Dolley as Calliandra 

 portoricensis Benth. White Anneslia. 



5. ACACIA WiUd. Sp. PI. 4: 1049. 1806. 



Shrubs or trees, with bipinnate leaves, the ultimate leaflets usually small 

 and numerous, or the leaves in many exotic species modified into flat simple 

 phyllodes. Flowers small, in heads or spikes. Calyx campanulate, usually 

 4-5-toothed, or of 4 or 5 distinct sepals. Petals mostly 4 or 5, or wanting. 

 Stamens distinct, exserted ; filaments filiform ; pollen-grains cohering in 2 's-6 's. 

 Pod linear, oblong or oval, flat or swoUen, often constricted between the seeds. 

 [Greek, point, or thorn, many species being thorny.] About 450 species, chiefly 

 in subtropical regions. Type species: Acacia nilotica Delile. 



