530 CONTRIBUTIOlSrS FEOM THE NATIONAL HEEBAEIUM. 



1. Dactylophyllum aureum (Nutt.) Heller, Muhlenbergia 2: 231. 1906. 

 Gilia aurea Nutt. Journ. Acad. Phila. II. 1: 155. pi. 22. 1848. 

 Linanthus aureus Greene, Pittonia 2: 257. 1892. 

 Type locality: Santa Barbara, California. 

 Range: Southern California to western Texas. 

 New Mexico: Mangas Springs (Metcalfe 54). 



120. HYDROPHYLLACEAE. Waterleaf Family. 



Annual or perennial herbs 1 meter high or less, mostly small plants, with usually 

 opposite, exstipulate, simple or compound leaves and perfect flowers solitary in the 

 axils or in terminal helicoid cymes or 1-sided racemes; calyx of 5 more or less united 

 Bepals, the sinuses sometimes appendaged; corolla regular, 5-lobed, mostly funnel- 

 form, often appendaged within at the base of the tube; stamens 5, the filaments 

 adnate to the base of the corolla; ovary superior, 1-celled or rarely 2-celled; fruit a 

 capsule with 1 or 2 incomplete cells; seeds usually few. 



KEY TO THE GENERA. 



Leaf blades entire; ovary more or less 2-celled; styles 

 2, distinct. 

 Corolla urceolate; flowers cymose; leaves long- 

 linear; plants fleshy 1. Andropus (p. 530). 



Corolla funnelform; flowers solitary; leaves linear- 

 oblong or broader; plants not fleshy 2. Marilaunidium (p. 531). 



Leaf blades more or less toothed, lobed, or dissected; 

 ovary 1-celled; style 2-cleft. 

 Corolla lobes imbricated in the bud; placentae 



narrow 3. Phacelia (p. 532). 



Corolla lobes convolute in the bud; placentae 

 dilated. 

 Stamens included; calyx enlarged in fruit; 



leaves opposite 4. Nyctelea (p. 535). 



Stamens exserted; calyx not enlarged in fruit; 



leaves alternate 5. Hydrophyllum (p. 535). 



Doctor Gray in the Synoptical Flora^ states that Eriodictyon angu^tifolium Nutt. 

 occurs in New Mexico, but we have seen no specimens nor does it seem probable 

 that the plant comes witliin our borders. 



1. ANDROPUS Brand. 



Fleshy cespitose herbaceous perennial, hispid throughout; leaves narrowly linear; 

 flowers in terminal crowded cymes, not conspicuously helicoid; calyx of 5 linear 

 sepals coalescent for a short distance at the base, not appendaged; corolla long- 

 urceolate, not appendaged within, the limb with 5 short refiexed lobes; stamens 5, 

 included, the filaments slightly expanded at the base; ovary 2-celled; styles 2, with 

 capitate stigmas; seeds numerous, horizontal, angled. 



1. Andropus camosus (Wooton) Brand, Report. Nov. Sp. Fedde 10: 281. 1912. 

 Conanthv^ ? camosus Wooton, Bull. Torrey Club 25: 262. 1898. 

 Type locality: Wliite Sands New Mexico. Type collected by Wooton (no. 164), 

 Range : Southern New Mexico and western Texas. 

 New Mexico: Wliite Sands; Lakewood. Gypsum soil, in the Lower Sonoran Zone. 



1 2': 176. 



