TO 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[VOL. 10 



3-4 mm long, 2.5-3.5 mm wide; two interior calyx- 

 lobes forming a calyptra; petals adherent to the calyp- 

 tra and falling with it. 23. M. (Krugia) ferruginea. 



42. Bracts falling at anthesis, lanceolate or ovate, 1-3 mm 

 long, 1-1.5 mm wide; calyx with 4 free tips in the bud, 

 splitting irregularly longitudinally. 22. M. cuprea. 



Calyptranthes Sw. Prodr. Veg. Ind. Occ. 79. 1788. 



1. Calyptranthes amshoffae McVaugh, sp. now 



Arbor 8-12 m alta, ramulis paniculis alabastrisque pilis fiavidis, usque ad 

 1.5 mm longis, dense obsitis; ramulis exalatis; foliis acuminatis 12-18 cm longis, 

 supra crebro impresso-punctatis ; nervo medio supra impresso ; venis lateralibus 

 non impressis ; petiolis 9-15 mm longis ; paniculis 6-14 cm longis multifloris ; 

 braeteis deeiduis; alabastris clausis, calyptratis. 



Tree 8-12 m high, up to 10 cm diameter, the inflorescence and young growth 

 covered with loosely appressed sessile dibrachiate silky brownish yellow hairs up 

 to 1.5 mm long; leaves elliptic to lance-ovate, (2.5-) 5-6.5 cm wide, (7-) 12-18 

 cm long, 2.6-3 times as long as wide, acuminate, rounded from below the middle 

 to an acute base, the margins decurrent on the ventrally concave petiole 1.5-2 mm 

 thick, (6-) 9-15 mm long; midvein deeply sulcate above, prominent beneath ; 

 lateral veins 15-20 pairs, slightly elevated both sides, not well contrasted to the 

 numerous intermediates; marginal vein equaling the laterals, scarcely arched 

 between them, 1.5-2 mm from the margin, sometimes with an outer smaller vein 

 beyond it; blades dull green and thickly impressed-puncticulate above (the 

 glands more than 50 per mm 2 ), paler and very sparingly dotted beneath, the 

 lower surface somewhat persistently appressed pubescent ; inflorescence usually 

 abortive at the first node, the paired panicles 6-14 cm long, 3- (to 4-) times 

 compound, many-flowered, the flowers mostly sessile in 3 's near the tips ; peduncle 

 nearly terete, 1.5-2 mm thick, 3-6 cm long; basal bracts (one subtending each 

 paired panicle) somewhat persistent, boat-shaped, keeled, acuminate, very sparse- 

 ly pubescent or glabrous, 0.8-2 cm wide, 1.5-2.7 cm long ; smaller bracts, and the 

 bracteoles, deciduous before anthesis; buds 3-4 mm long, narrowly obovoid, 

 rounded at the tip or obscurely apiculate ; hypanthium after anthesis campanu- 

 late, 2.5 mm long, glabrous within ; calyptra 2 mm in diameter ; style 6 mm long, 

 glabrous; stamens about 50, 5.5-7 mm long, the anthers 0.3-0.4 mm long; petals 

 none ; ovary bilocular, the ovules ascending, 2 in each locule ; fruit not seen 

 mature, probably globose, about 1 cm in diameter. 



This species is named for Dr. G. J. H. Amshoff, author of the treatment of 

 Myrtaceae in the Flora of Surinam e, and of numerous other papers on the 

 Myrtaceae of the Guianas. Miss Amshoff recognized the present species in the 

 Flora of Suriname 3: 64 (1951), under the name of "Calyptranthes spec", but 

 did not provide a specific epithet. All the known collections are from the same 

 general locality. 



SURINAME: Nassau Mountains, savanna forest at km 7.4, March 11, 1949, Lanjouw Sr 

 JAndeman 2585 (IJ) ; same, March 2, km 5.8, No. 2407 (U) ; forest at 525 m elevation, Feb 

 28, 1955, Maguire 40713 (MICH, type), 407 19 (MICH). 



2. Calyptranthes apoda McVaugh, sp. nov. 



Arbor 15 m alta, paniculis et praesertim hypanthiis pilis rufis appressis, mag- 

 na pro parte dibrachiatis, usque ad 0.5 mm longis, obsitis; ramis exalatis; foliis 

 acuminatis 8-10 cm longis; nervo medio supra planiusculo, vix impresso; venis 



