330 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
RAIMANNIA, A NEW GENUS. 
Linnieus, in the first edition of the Species Plantarum, describes three species as 
belonging to Oenothera, viz, O. biennis, O. mollissima, and OQ, Fruticosa. These species 
are now believed to be of different genera. In 1835 Spach referred them to Onagra, 
Oenothera, and Kneiflia, respectively, and this course has been followed by Raimann, 
Small, Britton, and other recent writers on this group. 
Recently Mr. W. F. Wight has informed me that the species biennis should be 
considered the type of Oenothera proper. A careful review of the history of the 
venus seems to confirm his statement. This being the case, the Onagra of Tournefort, 
Adanson, and Spach becomes a true synonym of Oenothera L., and our plants com- 
monly called Oenothera are without a name. They can not be merged into Anogra, 
although some of the reputed Anogras should go with them. 
I propose for this genus the name Raimannia, given in honor of Dr. Rudolf 
Raimann, of Vienna, who had the courage to divide the old genus Oenothera and to 
place the group on a proper basis. 
Type species R. laciniata ( Oenothera laciniata Hill). 
The following North American species are recognized: 
Raimannia colimae Rose, sp. noy. 
A small much-branched plant strikingly resembling Hartmannia rosea, somewhat 
appressed-pubescent and with some spreading hairs; leaves lanceolate, 2 to 3.em. long, 
acute, minutely toothed; buds erect or nodding, glabrous except for a few long silky 
hairs; tips free but short; segments 10 mm, long; tube slender, 3 to 3.5 cm. long; 
pods sessile, slender, 3 to 4 cm. long; seeds nearly globular, somewhat reticulated. 
Collected on the Voleano of Colima, Jalisco, by M. E, Jones, July 14, 1892 (no, 232). 
Raimannia confusa Rose, sp. nov. 
Stems 40 to 70cm. high, mach branched, more or less purplish, somewhat appressed- 
pubescent as well as slightly pilose; leaves rather narrow, 2 to 5 cm. long, pinnately 
cleft; flower buds nodding; calyx segments long-hairy, 12 to 15 mm. long, the free 
tips very short; the tube slender, about 3 em. long; petals rose-colored, 14 mm. 
long; pods terete, sessile, hairy, ereet or somewhat spr sading, 3 to 4m. long; seeds 
in two rows, reticulated. 
Collected by J. N. Rose on the Sierra de Pachuca, July 21, 22, 1901 (no. 5636). 
This species is rather common inthe Valley of Mexico and on the lower stretches 
of the neighboring mountains. It has heretofore been confused with O. sinuwata (now 
Rh. laciniata), but has a somewhat different appearance and much shorter tips to the 
calyx-segments, ete. 
Raimannia curtissii Rose, sp. nov. 
Perennial, comparatively simple, 20 to 80cm. high; basal leaves narrowly oblanceo- 
late, 5 to 10 cm, long, acute, subentire, runcinately-lobed; stem leaves lanceolate to 
linear, subentire, acute, clothed with cinereous appressed hairs; inflorescence an 
interrupted leafy-bracted spike; calyx tube very slender, 2.5 to 3 em. long; some- 
What spotted, nearly glabrous; lobes 1 em. long, nearly glabrous (but sometimes with 
afew long hairs and some shorter ones), its tips very short; petals probably white 
but somewhat purplish in dried specimens, 15 mm. long; capsule cone-shaped, 12 to 
14mm. long, somewhat pubescent; seeds in two rows in each cell. 
Collected by A. H. Curtiss in dry open places in Flint River Valley near Bain- 
bridge, Georgia, August 22, 1902 (no. 6880); and probably also by 8. M. Tracy at 
Kast Pass, Florida, September 1, 1899 (no. 6614). 
Raimannia coronopifolia (T. & G.) Rose. 
Oenothera coronopifolia T. & G. Fl, N. Am. 1: 495. 1840. 
Anogra coronopifolia Britton, Mem. Torr. Bot. Club 5: 234. 1894. 
Oenothera coronopifolia was referred to Anogra by Doctor Britton in 1894 and this 
view has since been followed by Small and others. It is true the buds are nodding 
