216 



470. EVAX. 



Pales someyvliat obtuse. Seeds smooth, a. 5, 6. 

 Sandy shores. La Maddaleaa and S. Maria, 

 Sardinia. 



4. discolor. H. mixed with irregularly 

 disposed bracts. L. obovato-lanceolate. Floral 

 L. hardly exceeding calyx. FI. crowded, sm*- 

 rounded by loose wool. Chaff obtuse, papery 

 (lacerate, Guss.). a. 7- Sandy splashes. Ne- 

 brodes. 



5. Heldreichii. " "White, wooHy. Stem 

 simple, very short, 1 -flowered, or with a few 

 ascending branches from under the central, ses- 

 sile head. L. obovato-spatulate : inner shorter 

 than flower. Phyll. of one colour : outer acute ; 

 inner dilated at top and truncate, a. 5, 6. 

 Calc. hills. Pietra Facile." — Guss. 



6. eKi^ua. " Grey, woolly. Stem short, 

 forked, erect. Side Branches numerous, de- 

 cumbent or ascending. L. spatulato-hnear ; 

 upper exceeding flowers. Fl. crowded, termi- 

 nal and in the forks. Fits, numerous. Phyll. 

 concave, keeled; outer acuminate, the base 

 covered with wool, the tips of a yellowish 

 green, smooth and shining ; the inner obtuse, 

 a. 4, 5. Dry hills." Sic. — Guss. 



7. tenuifolia. " Grey, tomentose. Stems 

 slender, filiform, much branched. L. narrow, 

 lineari-spatulate. Fl. w^ooUy, terminal and 

 approximate on the sides of the branches. 

 Outer PhyU. awned ; inner somewhat acute. 

 a. 4, 5. Barren calc. Lampedusa." — Guss. 



Tribe II. GNAPEALIEM 



471. FILAGO. 



A. Phyllaries concave, but not inclosing the 



seeds. 

 i. Outer Fhyllaries tapering into a slender awn. 



1. pyraxnidata. Heads hemispherical or 

 depressedly globose, exceeded by the leafy invo- 

 lucrum. Fl. 10-18, ovoideo-pyramidal, with 

 5 marked angles and concave sides, not wholly 

 imbedded in thick wool. Innermost scales ob- 

 tuse ; the nerve evanescent. AU L. somewhat 

 broader above the middle, a. 7-10. Fields. 



2. prostrata. " Stems short, prostrate, 

 somewhat dichotomous at top. L. hneari-ob- 

 long or spatulate, cano - tomentose. Heads 

 globose, crowded, approximate. Outer Scales 

 acumiuate with a scariose point. Awns reflexed. 

 Inner Scales obtuse, often with a little point. 

 (All the Scales acnminato-aristate, somewhat 



divaricate, Guss.) a. 5, 6. Dry hills. Sic. 

 Lucania." — Parl. 



3. apiculata. Heads subglobose, usually 

 equalled by 2 or 3 L. of the involucrum. Fl. 

 2()-25, ovoid, somewhat pentagonal, half bu- 

 ried in wool. All the Scales acuminate with an 

 excurrent red nerve. (Plant covered with a yel- 

 lo^^dsh wool, JoRD.) Lower L. more or less 

 spatulate, apiculate. Floral L. often ovate ; 

 upper oblong, a. 6, 7- Sandy fields. 



4. ^ermanica. Heads globose, rarely ac- 

 companied with a single floral L. Fl. ovoid, 

 30-40, imbedded in thick wool. All the Scales 

 acuminate with an excm-rent nerve. Lower L. 

 linear, hardly or not at all widened above ; 

 upper somewhat widened near the base, acute. 

 a. 5-7. Fields. 



5. eriocephala. Heads globose or some- 

 what prolonged, without involucrum. Fl. 40- 

 60, ovoid, imbedded in thick wool. AR the 

 Scales with excun-ent nerve. L. tiled, more 

 or less ovate, prolonged, acute ; upper some- 

 times almost linear, a. 6. Bry gravel or sand. 

 Hyeres. Ponte Galera. Sic 



ii. Fhyllaries not awned. 



6. arvensis. Heads of Fl. in a pyramidal 

 panicle ; the central stem often ending in a 

 raceme or spike. Outer PhyU. Knear, very 

 narrow, a. 7, 8. Sandy fields, m. and s. 

 Em-ope. 



7. heterantha. "Stem erect, simple or 

 branched. Branches long. L. linear, tomen- 

 tose. Heads solitary, axillary and terminal, 

 somewhat spiked, sessile and stalked. PhyU. 

 acute, steUate when in fruit, a. 5, 6. F)ry 



fields. Sic." — Paul. 



8. Iia^opus. " Stem erect, nearly simple. 

 L. softly tomentose. Heads solitary or in 

 small clusters, axillary and terminal, a. 6, 7- 

 Open sandy. Sic." — Parl. To judge from 

 the descriptions, this and Sp. 7 are varieties 

 of F. arvensis. Gussone {who has no arvensis) 

 adopts them. 



iii. Calyx calycled ! without awns. 



9. minima. Dichotomous. L. lineari- 

 lanceolate, shorter than heads. Head lax, of 8-7 

 pyramidal flowers, terminal and at the forks of 

 stem, as long or longer than floral L. Outer 

 PhyU. ovate ; inner tomentose at base, smooth 

 and scariose at top. a. 6-9. Barren. 



10. neglecta. " Branched, somewhat di- 

 chotomous. L. lineari-lanceolate ; uppermost 

 crowded, exceeding flowers. Heads lax, of 2-4 



