NOTES ON HUMIRIACE#. 103 
Abundant by streams and lakes about Barra do Rio Negro, where 
Mr. Spruce found it growing to a bushy tree of about 20 feet, with 
highly odoriferous greenish flowers. 
ll. H. densiflorum (Benth. in Lond. Journ. Bot. vol. ii. p. 374) ; foliis 
ovato-ellipticis breviter et obtuse acuminatis vix crenatis glabris, 
cymis peduneulatis, floribus numerosis confertis extus pubescentibus. 
— Folia coriacea, 3—6-pollicaria, petiolo 2—4-lineari. Pedunculi sub- 
pollicares. Flores conferti quasi capitati, fere 2 lin. longi. Anthere 
laterales staminum majorum quam intermedia minores, loculis parvis 
v. omnino deficientibus. 
On the Rio Quitaro, in British Guiana, Schomburgk, 1st coll. 
n. 543. 
12. H. oblongifolium, sp. n.; foliis oblongis breviter acuminatis sub- 
serratis glabris v. ad pie minute puberulis, cymis subsessilibus, 
floribus confertis extus pubescentibus.—Folia 4-5 poll. longa, 13-2 
poll. lata, petiolo minus quam in ceteris speciebus dilatato, consi- 
stentia vix demum coriacea, venis primariis a costa divergentibus 
intra marginem arcuato-conniventibus, venulis reticulatis. Cyme 
plerzeque pauciflore, pedunculo communi vix lineam longo. Flores 
2 lin. longi. Calycis lobi orbiculati. Filamenta fere ad tertiam 
partem connata, glabra, majorum antherz laterales intermedie con- 
formes nisi minores. Discus irregulariter 10-fissus, lobis denticulatis. 
Ovarium subglobosum, loculis uniovulatis. Stylus brevis. Drupa 
oblonga, 11-2 poll. longa, medio 6 lin. diametro, basi attenuata, 
apice ineurvo-acuminata, subuncinata, carne parca, endocarpio osseo, 
cavitatibus (balsamiferis?) notato. Semina abortu 1-2, singula 
loculos angustos implentia, testa tenuissima, albumine albido, em- 
bryone dimidium seminis superante. | 
A spreading tree of 30 feet, with greenish flowers and green fruit, 
frequent in the gapò of the Rio Negro, above Barcellos, gathered by 
Mr. Spruce in December, 1851. 
TII. SACOGLOTTIS, Mart. 
Flores parvi. Stamina 10, filamentis dilatatis basi vix brevissime con- 
natis, adjectis hinc inde filamentis nonnullis filiformibus anantheris. 
Discus 5-lobus v. 5- -partitus, lobis squamisve sæpe bidentatis bi- 
fidisve. Ovula in loculis ovarii solitaria. Cyme vnum axillares 
v. laterales. 
