30 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 
1. Selaginella rupincola Underw. Bull. Torrey Club 25: 129. 1898. 
Type Loca.ity: ‘‘On perpendicular rocks, Organ Mountains.’’ New Mexico. Type 
collected by Wooton (no. 124). 
Rance: Mountains of New Mexico and Arizona. 
New Mexico: San Luis Mountains; Dog Spring; Organ Mountains. On rocks and 
ledges, in the Upper Sonoran Zone. 
2. Selaginella densa Rydb. Mem. N. Y. Bot. Gard. 1: 7. 1900. 
Type Loca.ity: ‘‘Little Rocky Mountains,’’ Montana. 
Rance: Montana and western Nebraska to New Mexico. 
New Mexico: Winsors Ranch; Hillsboro Peak. In the Transition Zone or higher. 
3. Selaginella wrightii Hieron. Hedwigia 39: 298. 1900. 
TYPE LOCALITY: Western Texas. Type, Wright’s no. 828. 
Ranae: Western Texas and New Mexico to Mexico. 
New Mexico: Lakewood; Las Vegas. 
4. Selaginella mutica D. C. Eaton; Underw. Bull. Torrey Club 25: 128. 1898. 
Type Locauity: ‘‘New Mexico.”’ 
RanGE: Colorado to Arizona and New Mexico. 
New Mexico: Pecos; Canada Alamosa; Organ Mountains. Damp cliffs in the 
mountains, in the Upper Sonoran Zone. 
5. Selaginella underwoodii Hieron. in Engl. & Prantl, Pflanzenfam. 1*: 715. 1901. 
Selaginella rupestris fendleri Underw. Bull. Torrey Club 25: 127. 1898. 
Selaginella fendlert Hieron. Hedwigia 39: 303. 1900, not Baker, 1883. 
Type Locauity: New Mexico. Type collected by Fendler (no. 1024). 
RanGaeE: Colorado, New Mexico, and southward. 
New Mexico: Winsors Ranch; Folsom; Ramah; Mogollon Mountains; Black Range; 
Bear Mountain; Organ Mountains; White Mountains. On rocky walls and ledges 
in the mountains, in the Upper Sonoran, Transition, and Canadian zones. 
Subkingdom SPERMATOPHYTA. Seed-bearing 
plants. 
Class 1. GYMNOSPERMAE. 
Order 5. PINALES. 
KEY TO THE FAMILIES. 
Leaves needle-like; carpellary scales with bracts, 
never peltate; ovules inverted; cones dry...... 6. PINACEAE (p. 30). 
Leaves scalelike or awllike; carpellary scales without 
bracts, fleshy or peltate; ovules erect; cones 
berrylike................--2----------------0-- 7. JUNIPERACEAE (p. 35). 
6. PINACEAE. Pine Family. 
Large evergreen trees with needle-shaped leaves; infertile flowers in short catkins; 
fertile flowers in scaly aments, becoming cones, with 2 or more ovules at the base of 
each scale; fertile scales numerous, spirally imbricated. 
KEY TO THE GENERA. 
Leaves fascicled, inclosed by sheaths at the base, at least 
when young; cones maturing the second year.....- 1. Pinus (p. 31). 
Leaves solitary, not sheathed; cones maturing the first 
year, 
