WOOTON AND STANDLEY—FLORA OF NEW MEXICO. 531 
2. MARILAUNIDIUM Kunize. 
Low annual or perennial herbs with pubescent, mostly diffusely branched stems, 
small simple entire alternate nearly sessile leaves, and solitary axillary flowers; corolla 
whitish to blue or purple, funnelform, the lobes broad, imbricated in bud; stamens 
mostly included; ovary 1-celled, sometimes imperfectly 2-celled; styles 2, distinct; 
capsules oblong to subglobose, 2-valved; seeds numerous, small, rugose. 
KEY TO THE SPECIES. 
Perennial, from a thick woody base. ................-- eseee 1. M. xylopodum. 
Annuals. 
Corolla not at all or but slightly exceeding the calyx...... 2. M. angustifolium. 
Corolla much exceeding the calyx. 
Corolla pale blue, 5 mm. long; plants slender, with few 
erect branches..................... eeeeeeeee 3. M. tenue. 
Corolla deep purple, more than 7 mm. long; plants stout, 
with very numerous dense spreading branches. 
Leaves of the inflorescence obovate to broadly ob- 
long, flat, strongly hispid or hirsute; tube of 
corolla shorter than the calyx. .....----..- 4, M. foliosum. 
Leaves of the inflorescence linear to narrowly ob- 
long, revolute; tube of corolla exceeding the 
CalyX.... 22.2222 eee ee eee eee eee eee 5. M. hispidum. 
1. Marilaunidium xylopodum Woot. & Standl. Contr. U. 8. Nat. Herb. 16: 162. 
1913. 
TYPE LOCALITY: Crevices of limestone rocks near Queen, New Mexico. Type col- 
lected by Wooton, July 31, 1909. 
RanaeE: Southern New Mexico and western Texas. 
New Mexico: Queen (Wooton). Dry hills. 
2. Marilaunidium angustifolium (A. Gray) Kuntze, Rev. Gen. Pl. 2: 384. 1891. 
Nama dichotomum angustifolium A. Gray, Proc. Amer. Acad. 8: 284. 1870. 
Conanthus angustifolius Heller, Bull. Torrey Club 24: 479. 1897. 
Tyre Loca.ity: ‘‘New Mexico.’’ Type collected by Fendler in 1847, near Santa 
Fe (no, 644). 
Rance: Colorado to New Mexico and western Texas. 
New Mexico: Tunitcha Mountains; Pecos; Santa Fe Canyon; Santa Rita; Mo- 
gollon Mountains; Organ Mountains; White and Sacramento mountains. Open 
slopes, in the Upper Sonoran and Transition zones. 
3. Marilaunidium tenue Woot. & Standl. Contr. U. 8S. Nat. Herb. 16: 162. 1913. 
Type Locatity: Limestone hills 3 miles south of Hillsboro, Sierra County, New 
Mexico. Type collected by Metcalfe (no. 1291). 
RanGE: Known only from type locality. 
4. Marilaunidium foliosum Woot. & Standl. Contr. U. 8. Nat. Herb. 16: 162. 1912. 
TYPE LocaLiTy: On saltgrass flats near Roswell, New Mexico. Type collected by 
Earle (no. 531). 
Rance: Southeastern New Mexico. 
New Mexico: Roswell; Lake Arthur; Fort Stanton. Dry plains and hills, in the 
Lower and Upper Sonoran zones. 
5. Marilaunidium hispidum (A. Gray) Kuntze, Rev. Gen. Pl. 2: 434. 1891. 
Nama hispida A. Gray, Proc. Amer. Acad. 5: 339. 1862. 
Conanthus hispidus Heller, Bull. Torrey Club 24: 479, 1897. 
TYPE Locatity: Not definitely stated. 
