Neckerace^.] 223 {Hedwigia. 



Autoicous ; growing in depressed hoary yellowish-green patches. 

 Stems irregularly divided, procumbent and ascending, leafless at base. 

 Leaves erect and imbricated when dry, spreading on all sides or secund 

 when moist, somewhat decurrent, ovato-lanceolate with diaphanous erose 

 points, concave, not plicate, revolute at margin, papillose. Cells on both 

 sides from centre of cell set with 2 — 3 pointed papillae, narrow and linear 

 in middle of base, quadrate at sides and above. Perichaetial bracts longer, 

 acuminate, the upper margin fringed with long white flexuose nodulose 

 cilia. Capsule immersed, obovate or globose, on a very short seta, erect, 

 pale brown, reddish at mouth ; calyptra conical with a long point ; lid 

 plano-convex, generally with a central papilla. 

 Hab. — On rocks in mountainous places, frequent. Fr. 3. 



Var. ^. leucophaea Br. Sch. 



More robust and densely leaved ; leaves broader, whitish, a third part void of 

 chlorophyl. 

 Hab. — In very dry places. 



Var. y. secimda Br. Sch. 



Stems long and slender, prostrate, leaves secund, less crowded, with a shorter 

 acumen, or submuticous. 



Schistidium imberbe Brid. Bry. univ. i, Il8 (excl. syn,). 



Hab. — Shady rocks. 



Var. 8. viridis Br. Sch. 



More slender, leaves dark green with the apex scarcely colourless. 

 Hab. — Shady rocks. 



Var. e. striata Wils. 



Leaves sulcate, reflexed at margin, yellow-green ; lid of capsule convex-conic. 



Syn. — Anictangium striatum Wils. in Hook. Brit. Fl. ii, 12 (1833). 



Hab. — Granite rock near Llyn Idwel, Caernarvonshire (^Wilson). Alva wood, Ochill hills (L,yle). 

 New Galloway {McAndrew). 



Tab. CXX. A. Porotrichum alopecurum (Whitby, Braithwaite). B. Por, angustifoUum (Derby- 

 shire, Half). C, Homalia trichomanoides (Knowle Park, Braithwaite). D. Neckera 

 cdmplanata (Killarney, Braithwaite). 



Tab. CXXI. A. Neckera crispa (Dartmoor, Holmes). B. N. fontinaloides (Sussex, Davies). 

 0. var. Philippei (Callander, McKinlay). C. N. pennata (Colin Glen, Orr). D. Climacium 

 dendroides (Cheshire, Whitehead). 



Tab. CXXII. A. Alsia Smithii (Sussex, Davies), B. Fontinalis antipyretica {Stroai, G. Holmes), 

 p. var. gigantea. C. F. Dixoni (Beddgelert, Dixon). 



Tab. CXXIII. A. F. gracilis (Stirlingshire, Kidston). B. F. Dalecarlica (Princeton, Dixon). 

 C. F. squamosa (Hebden Bridge, Wilson). D. F. dolosa (Limbury, Saunders). E. F. 

 seriata (Winforton, Binstead). 



Tab. CXXIV. A. Amitrichia curiipendula (Dartmoor, Holmes). B. Leucodon sciuroides (Levens, 

 Stabler). C. Cryphcea arborea (Shanklin, Braithwaite). D. Cr. Lamyi (River Dart, Toeer). 

 E. Hedwigia albicans (Craigailleach, Braithwaite'). F. Hed. imberbis (Wales, Wilson), 



a. Fertile pi. b. Male pi. c. Sterile pi. i. Stem leaf. I a. Apex. I b. Base. I r. Branch 

 leaf. 2. Perich. bract. 3. Male infl. 4. Bract, and Antherid. pc. Perichaetium. 5. Capsule. 

 6. Calyptra. 8. Part of Peristome. 



