(10) F. N. WILLIAMS. REVISION ÜF THE GENUS HERNIARIA. 565 



Spécimens examined in Herb. Kew. are from lluet du Pavillon, PL 

 Siculse (185o), others collecled in Aegina one of the Greek Islands. Huet 

 du Pavillon's spécimens so-named in PI. NeapolÜanae, no. 317 (1856) are 

 too hirsute and canescenl to be referred to this variely. 



As the type of the genus, I have described this species at some lenglh. 

 Since also many of the minor characters are common to and fairly 

 constant in the greater number of the species, they need not be empha- 

 sized in reviewing their distinctive characters for comparison. The exa- 

 mination of further malerial should décide whetlier y and S should 

 remain as varieties distinct from one another. 



Geogr. area. Throughout Europe, except Lapland, Iceland, and Ireland; 

 S. Siberia, Armenia and Syria to N. W. India, and Soungaria; in Africa, 

 Algeria and Marocco. 



Y. Folia fere omnia alterna. Flores sessiles in glomerulos 6-10-floros 

 alternos spicatos valde approximatos dispositi. Styli 2 liberi. Species 

 annuse. 



14. H. cinerea DG. Fl. Franc. suppL, p. 375 (1815); Boiss. Fl. 

 Orient. I, p. 739; Willk. et Lge. Prodr. lü, p. 153. — Scabrido-hirsutis- 

 sima, cinereo-virescens. Gaules ramique inde a basi florigeri teretes, 

 7-15 cm. Folia ovalia ovali-lanceolata vel oblongo-linearia, basi attenuata; 

 stipulée brèves ovato-triangulares ciliolatse. Glomeruli ovoidei folio oppo- 

 site breviores; flores numquam in dichotomiis solitarii. Galyx dum 

 clausus oblongus, villoso-hispidus ; segmenta sequalia lanceolata. 



Syn. H. aiinua Lag. Gen. et spec. nov., p. 12, n. 154 (1816); H. hirsuta 

 (non Linn.) Yiv. Fl. Lijb. spec. p. 15; H. flavescens Lowe, in Trans. Cambr. 

 Phil. soc. YI (1838), p. 21 (sep.); H. incana (non Lam.) Tenore, Syll. 

 p. 123 ; H. alpina (non Yill.) Tenore, Fl. NapoL III, p. 253. 



ß. virescens Salzm. (sp.) ex DG. Prodr., III, p. 367. — Planta multum 

 minor, minus grisea, floribus extus pilosiusculis. 



Syn. S. annua var. virescens Ball, Spicil. fl. Marocc. in Journ. Linn. 

 Soc, XYi, p. 639 (1878). 



There is an interesting authentic spécimen of this plant in Herb. Kew. 

 ex Herb. Munby, about half the size of most of the spécimens of 

 H. cinerea, found in the neighbourhood of Tangier. As noted by Mr. 

 Ball, it is not « glabriuscula » as described by De Gandolle; « ab 

 E. cinerea non differt nisi indumento parco, et meram varietalem 

 sistit. » 



Y. fragilis Lange, Ptigill. Plant., p. 293; Willk. et Lge. Prodr., III, 

 p. 153. — Tota albido-tomentosa, Gaules ramique fragiles, internodiis 



