(2) T. A. SPRAGUE. PLANTARUM NOVARÜM. 701 



Anona sericea, Dunal, lias hilherto been liltle known, and seems 

 to hâve been redescribed but once, by Martius, who quotes neilher collec- 

 tors nor précise localilies. Il differs slrikingly in Ihe formation of ils 

 fruit from the olher species of Anona. The fruit of Anona is usually 

 formed by the union of the ovaries in one fleshy mass, by means of 

 inlerlocking hairs, white the styles remain free. In Anona sericea the 

 ovaries are also united, and each style bends over sharply, a Utile above 

 its base, towards the centre of the flower, tili it touches the style next 

 above it on the réceptacle, when it again rises vertically; at the knees. 

 which form their point of contact the two styles are uniled by inler- 

 locking hairs, wilh Ihe resuit thaï an ouler rind of the fruit is formed, 

 consisting of the fused median portions of the styles. The median portion 

 of each style is united to those on either side in the same manner as at 

 the knees. The fusions mentioned lake place at a comparalively early 

 stage in the developement of the flower. 



ANONA JAMAICENSIS, Sprague sp. nov., Anonœ sericeœ, 

 Dunal, affinis, a qua foliorum indumento, conneclivo haud piloso fruc- 

 tuque recedit; lypi in Herb. Kew. — Arbor 3 — 6 m. alla (ex Grisebach). 

 Rami satis validi, dense lenlicellosi, cinerei, ramulis novellis ferrugineo- 

 pubescentibus mox glabrescenlibus. Petioli 7-11 mm. longi, pubescentes. 

 Lamina ovata vel ovato-oblonga, apice breviter obtuseque acuminata,basi 

 rolundata, 10—20 cm. longa, 4.5—8,5 cm. lata, supra glabra, sublus 

 subliliter adpresse pubescens; nervi secundarii salis reguläres, leviter 

 curvali, ulrinque 11 — 15, supra haud impressi, subtus prominentes. 

 Pedunculus 8— 10 mm. longus, tomentosus, supra medium bracteolalus. 

 Sepala late ovata, obtusa, alte connala, 3 mm. longa, basi 3 mm. lata, 

 extra lomenlosa. intus glabra. Petala 3, ovata, obtusa, 11—12 mm. 

 longa, 8 mm. lata, extra velutina. Filamenla 0,37 mm. longa; antherae 

 1,25—1,5 mm. longse; connectivum apice paullo dilatatum, quam anthe- 

 rarum lobi vix latius, minutissime papillosum (ope microscopii visum). 

 Slyli ovariis additis 1,25 mm. longi; Stigmata compresso-ovoidea, 0,5 mm. 

 longa. Fruclus globosus, 4,5—5,5 cm. diametro. tuberculaius. tuberculis 

 apice hamatis. Semina 14 — 15 mm. longa, 6 — 7 mm. lata. — Anona 

 sericea, Griseb. Fl. Bril. W. Ind. 5, non Dunal. 



Jamaica : prope Bath, Pur die; sine loco, Mardi, 4, 7, 1571 ; Alexander. 



ANONA UNGINATA, Sprague sp. nov., Anonœ sericeœ, Dunal, # 



affinis, a qua foliorum venatione, connectivo haud piloso, stigmatibus multo 



majoribus frucluque recedit; lypus in Herb. Kew. — Arbor 6—9 m. alla. 



Ramuli graciles, novelli puberuli vel pubescentes. Petioli 8—13 mm. 



bulletin de i/hkkrier boissier. ii° 7. 30 juin 1905. 47 



