204 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[VOL. 10 



of the holotype of this number at K at NY shows leaves with 10 pairs. The NY 

 specimen of Froes 22784 does not have the 7-9 pairs of lateral nerves stated as 

 such to be the case by Bremekamp, but has 7-10 pairs, while the Froes 21518 

 sheet at NY shows leaves also having 7-10 pairs. Therefore, variation extends to 

 10 pairs on the sheets at NY of the same numbers seen by Bremekamp and stated 

 by him (loe. cit. p. 376) as having 7-9 pairs. 



The leaves in H. verticillata are often 5-verticillate, but may be 4-vertieillate, 

 and in the collection of Maguire, Wurdack, & Bunting 36432 they are both 4- or 

 5-verticillate. 



2b. Henriquezia verticillata var. apiculata Steyermark, var. nov. 



A var. verticillata recedit laminis apice subito acutis vel subaeuminatis vel 

 obtuse acutis 10-23 cm longis 5-8 cm latis, nervis lateralibus utroque latere 

 plerumque (9-) 12-13 ; stipulis in anthesi juvenili manifestis linearibus ad 40 mm 

 longis 1-2 mm latis dense castaneo-tomentellis ; inflorescentiae bracteis in anthesi 

 juvenili manifestis, eis ramulos primarios amplectentibus oval is vel lineari- 

 lanceolatis apice acuminatis vel lineari-lanceolatis apice acuminatis vel subulatis 

 vel supremis saepe trifurcatis 8-15 mm longis 2-5 mm latis ferrugineo-tomentello- 

 sis, eis pedicellos amplectentibus ovato-lanceolatis vel ovatis acuminatis integris 

 vel bi- vel tri-furcatis 9-10 mm longis 3-5 mm latis. 



BRAZIL. Edo. Amazonas: Manaos, in silva igapo secus Igarape Mindu 

 superiorem ; arbor magna ; corolla alba roseopicta, intus flavosignata ; 19 Dec 

 1935, A. Ducke 81 (holotype US, isotype NY). 



This variety is distinguished from var. verticillata by the abruptly acute to 

 subacuminate instead of rounded, retuse, or truncate tips of the leaf-blades. A 

 collection of Ducke 21683 in US (Manaos, silva paludo secus rivulas, 8 Dec 1927) 

 is somewhat intermediate with leaf-tips only obtusely acute to acutish. 



In the holotype and isotype specimens the stipules at the base of the upper 

 leaf-verticils and the bracts of the inflorescence are present and conspicous, 

 w r hereas in all the collections thus far examined of var. verticillata, the stipules 

 and inflorescence bracts are caducous and absent. It is probable that both the 

 stipules and inflorescence bracts are quickly shed as the inflorescence develops 

 into anthesis. In the type collection the very early anthesis shown would explain 

 the still-persistent state of the stipules and bracts. In the intermediate collection 

 of Ducke 21683, all the bracts and all but the uppermost stipules have fallen from 

 the specimen shown in a later stage of anthesis than in the type collection of 

 var. apiculata. 



It should be noted that the holotype of var. apiculata (Ducke 81, 19 Dec 1935) 

 is a different collection from that labelled var. verticillata (Ducke 81, 12 Nov 

 1942) and deposited in US. 



3. Henriquezia nitida Spruce ex Benth. Trans. Linn. Soc. 22 : 297. 1859. 



This species, based upon a flowering collection of Spruce (no. 3690) along 

 the Casiquiare River in Territorio Federal Amazonas, southwestern Venezuela, 

 is represented in NY by an isotype specimen, by a fragment Of an isotype col- 

 lection in F, and by photographs of the holotype in K and in B. 



Spruce described the leaves (Trans. Linn. Soc. 22: 297. 1859) as "(an con- 

 stanter?) ternatim verticillata, 8-10 poll. [24-30 cm] longa, 2-3 [6-9 cm] poll, 

 lata." The isotype specimen at New York shows leaf-blades only 15-16 cm long 

 and 4-5.5 cm broad, while the leaves shown on the specimen photographed at 



