210 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
dark pit; petiolules thick, 2 to 5 mm. long; costa and veins densely ferruginous- 
pubescent; leaflet blades elliptic-ovate or lanceolate, rounded and sometimes 
subemarginate at the base, sparsely villous and sublustrous above, reticulate 
and villous beneath, with prominent costa and veins, the blades of the lower 
pair 10 to 11 cm. long, about 5 cm. broad, those of the upper pair 17 to 21 cm. 
long, 8 to 10 cm. broad. 
Inflorescences single in the axils of the leaves; peduncles stout, striate or 
subangulate, ferruginous-hairy, 5 to 7 cm. long; flower heads ovoid, dense; 
bractlets linear-lanceolate or narrowly oblanceolate, acute, pubescent without, 
subpersistent, 10 to 18 mm. long; flowers numerous, sessile; calyx tubular, 
striate, sparsely appressed-pubescent, 13 to 15 (14.1) mm. long, the teeth 
obtuse, 1 to 4 mm, long; corolla tubular, slightly widening toward the apex, 
densely silky-villous, 27.3 to 29.3 (28.2) mm. long, the lobes obtuse, irregular, 
8 to 4 mm. long; staminal tube about equaling the corolla; pistil 6 em. long, 
the ovary glabrous, 2-sulcate; stigma subpeltate. 
Legume not known. 
Type in the U. S. National Herbarium, no. 258948, collected at Las Vifias, 
Department of Santa Rosa, Guatemala, flowers, September, 1893, by Heyde and 
Lux (J. D. Smith, no, 6095). 
GUATEMALA: (Besides type) Cubilquitz, Alta Verapaz, flowers, March, 1901, 
von Tiirckheim (J. D. Smith, no. 7855). El Rancho, Department of 
Jalapa, flowers, January 12, 1908, Kellerman 7670. 
This species was determined by the late Micheli as Inga insignis Kunth, a 
South American species of which this Guatemalan plant is only a distant rela- 
tive, differing in the size and shape of the leaves, in the number of leaflets, and 
in the appearance of the glands, as well as in the larger and less hairy flowers. 
It is more closely allied to Inga pittieri, from which it departs only in its 
coarser, narrower, and more hairy leaves and its much larger flowers. It is 
named for Mr. Juan J. Rodriguez, a well-known Guatemalan naturalist. 
Series 2. SULCATAE. 
DESCRIPTIONS OF NEW AND OLD SPECIES. 
Inga adenophylla Pittier, sp. nov. 
A low, spreading tree; branchlets terete or angulate, the younger growth 
rufous or fulvous-tomentellous. 
Rachis of the leaves slender, winged, fulvous-pubescent or tomentellous, 
8 to 18 cm, long, the petiolar part winged or wingless, 2 to 8 cm. long, the 
wings narrow (0.5 cm, broad) below the basal leaflets, broadening to 2.5 cm. 
toward the apex and there triangular, with the base toward the terminal 
leaflets; stipules linear, narrowly acute, pubescent, about 12 mm. long, decidu- 
ous; leaflets 5 or 6-jugate, petiolulate, coriaceous; glands small, substipitate, 
pertuse, inserted not only between the leaflets but also 5 or 6 of them along 
the costa of each leaflet; petiolules 2 to 4 mm. long, fulvous-tomentellous; 
leaflet blades ovate or obovate, rounded at the base, obtuse or subacute and 
mucronate at the apex, the upper face sparsely pilosulous or glabrescent, the 
costa pubescent and slightly prominent and the veins slender and impressed, 
the lower face tomentose and strongly reticulate, the costa and veins densely 
fulvous-pubescent and very prominent; blades of the basal pair of leaflets 4 
to 6 cm. long, 1.5 to 3 cm. broad, those of the terminal pair 8 to 11 em. long, 
8.5 to 5.5 cm. broad. 
Floral spikes geminate in the axils of the upper leaves, the peduncles stout, 
rufous or fulvous-tomentelfous, 2 to 5 cm. long; bractlets lintar-lanteolate, 7 
