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, elastically 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 red to purple : pod appressed-pubescent. 1. A. haematostoma. 



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



1. Anneslia haematostoma (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 

 3-8 pairs, oblong to obovate, 4-8 mm. long, obtuse or mucronate, 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, Rum Cay, Conception Island, 

 Fortune Island, Waiting's, Caicos and Inagua : Cuba to St. Thomas. RED ANNESLIA. 



2. Anneslia formosa (Kunth) Britton & Millspaugh. 



Acacia formosa Kunth, Mim. 102. 1822. 



Calliandra 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, subchartaceous, few-veined; peduncles slender, shorter 

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

 as the calyx; stamens white, 1-1.5 cm. 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 Anguilla Isles : Cuba ; Mexico. 

 Recorded by Hitchcock as Calliandra gracilis Griseb. and by Dolley as Calliandra 

 portoricensis Benth. WHITE ANNESLIA. 



5. ACACIA Willd. 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 swollen, 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. 



