436 COKER: NORTH AMERICAN SPECIES OF ENCALYPTA 
§ 4. DIpLoLepis Kindb. 
10. E. longipes Mitt. = E. procera. 
11. E. letocarpa Kindb. = E. apophysata. 
12. E. subbrevicolla Kindb. = E. brevicolla Bruch. 
13. E. labradorica Kindb. = E. extinctoria. 
§ 5. STREPTOTHECA Kindb. 
14. E. contorta (Wulf.) Lindb. (E. streptocarpa Hedw.). 
15. E. cucullata C. Mill. & Kindb. = E. procera + E. extinctori, 
16. E. procera Bruch. 
17. E. Selwyni Aust. = E. procera. 
ENCALYPTA Schreb. Genera 2: 759. 1791 
Leersia Hedw. Fundam. 2:88, in part. 1782 
Plants growing in dense compact cushions or mixed with other 
cespitose mosses; stems usually low and crowded, seldom more than 
4cm. high; branches usually simple and sub-apical, erect, the leaves 
uniformly spaced; leaves usually curled and twisted when dry, 
spreading above when moist, from an erect clasping oblong base, 
seldom more than 6 mm. long by 1.5 mm. broad; costa stout, 
either ending below the apex or excurrent into a subulate or mu- 
cronate point, cross-section of costa usually papillose above on both 
faces, with a large dorsal band of stereid cells and several uppet 
layers of large ducts in 3-4 rows, the upper epidermal cells with 
thick walls and smaller papillae; cells of the upper pagt of the leaf- 
blade deeper than wide with clusters of prominent, minute papillae, 
those of the lower part of blade larger, oblong and usually without 
papillae, except in one species (E. apophysata) which has them on 
the short end walls; margins entire, flat or slightly recurved, 
rarely undulate. Perichaetial leaves generally smaller, more 
acuminate and often subulate. 
Monoicous, or in one exception (E. contorta) dioicous; some — 
times sterile and frequently propagating by elongated septate — 
brood-bodies; the antheridia in small lateral axillary buds; arche- : 
gonia terminal, vaginule enlarged, cylindric and often ochreate; — 
seta usually elongate, smooth except in E. streptocarpa, seldom more — 
than 1-2 cm., rarely 3 cm., long (E. longipes), usually twisted; oe 
calyptra large, 0.5-1 cm., completely covering the capsule to the so 
base, cylindric and glossy, smooth or papillose at apex, sometimes 
slightly papillose over the entire surface, ragged or fringed at bases 
lid (operculum) large, never equalling the urn (theca), long- 
