ROSE—MEXICAN AND CENTRAL AMERICAN PLANTS. 329 
Hartmannia latiflora (Ner.) Rose. 
Oenothera latiflora Ser, in DC. Prod. 8: 50, 1828. 
Seringe’s Oenothera latiflora was based upon Mocino and Sess¢’s drawing (DC. 
tracing no. 376). He questions whether this species should not be referred to 
tetraptera. A comparison of the published illustrations of the two indicates a differ- 
ence in pubescence, foliage, ete., and I am inclined to keep them distinct. 
Specimens collected by the writer on Sierra de Pachuca, Hidalgo (no, 5638) seem 
to answer IT. latiflora fairly well. 
Type locality: ‘‘In Mexico.” 
Hartmannia montana Rose, sp. nov. 
Stems branching, the branches 30 to 40 em. long, pubescent; leaves oblong, 6 to 
10 em. long, slightly pubescent, entire or nearly so, acute, shortly petioled; calyx 
tube pilose, 1 cm. or less long; petals drying purplish; fruiting peduncle 2 to 4 em. 
long; capsule 1.5 cm. long, broad at apex. 
Collected at Cima station, State of Mexico, on the railroad between City of Mexico 
and Cuernavaca, by J. N. Rose and Jos. H. Painter, September 19, 1903 (no. 7170). 
Hartmannia palmeri Rose, sp. nov. 
Acaulescent or with very short stems, glabrous throughout, with the habit and 
foliage of H. dissecta and H. havardi; calyx tube very slender, 5 em, long, twice 
longer than the calyx segments; calyx buds long-acuminate; tips of segments free in 
bud; style branches short; expanded corolla 6 cm. broad, purplish in dried speci- 
mens; ovary as well as calyx glabrous. 
A very showy and beautiful plant. 
Collected by Dr. E. Palmer near City of Durango, 1896 (no. 45). 
Hartmannia reverchoni Rose, sp. noy. 
A low diffuse perennial, its branches slender and wiry, slightly pubescent; leaves 
all linear, laciniately lobed or toothed, slightly pubescent or early glabrate, 2 to 4 
em. long; flowers axillary, sessile; sepals 10 to 12 mim. long; petals 12 to 15 mm. 
long, pale pink; capsule including the very stout woody base 15 mm. long; seed 
glabrous. 
Collected by J. Reverchon along the railroad east of Laporte, Tex., June 16, 1903 
(no, 3554). 
NEW NAMES IN LAVAUXIA. 
Lavauxia tubifera (Ser.) Rose. 
Oenothera tubifera Ser. in DC. Prod. 3: 50. 1828. 
This species has heretofore only been known from Mocino and Sesse’s plate (DC. 
tracing no. 377). 
In 1901 the writer had the good fortune to collect a plant in an alpine meadow in 
Central Mexico which corresponds very closely with the illustration referred to. 
My exact locality is the Sierra de Pachuca, Hidalgo, and the date July 21 and 22, 
1901 (no. 5622). 
Lavauxia graminifolia (Lévl.) Rose. 
Oenothera graminifolia Léyl, Monog. Onoth. 1:42. pl. 3 [in part]. 1902. 
Oenothera brachycarpa var. stenophylla Levi. 1. ec. 
Nearly acaulescent; leaves elongated, linear, 10 to 20 cry. long, 2 to 4 mm. wide, 
subentire, only slightly pubescent; calyx tube slender, 14 cm. long, appressed~ 
pubescent; petals pinkish, 4 to 4.5 em. long; capsule rather slender, 2.5 cm. long, 
pubescent, slightly winged. 
Collected by Dr. E. Palmer at Saltillo in 1880 (no, 342). Doctor Watson was 
inclined to consider this a very narrow-leaved form of brachycarpa. 
The writer had given a different name and the description was in manuscript 
before the appearance of Professor Léveillé’s monograph. The latter’s name must, 
of course, be taken up, as his material, at least for most part, is the same as mine. 
Type locality: ‘Saltillo, Coahuila.” 
