ME. C. B. CIABKE 01ST TTSTDIAK SPECIES OE CYPEBTTS. 37 



p. 362; Pari, Fl. Ital. ii. p. 26; Asa Gray, Man. p. 552; 

 Torrey in Ann. Lyceum New York, iii. p. 250 ; BoecJc. in Linncea, 

 xxxv. p. 438 ; Boiss. Fl. Or. v. p. 364 (ex Afgb. excl.); Coss. F.vpl. 

 Alger., Bot. iii. p. 254 (nee Schk. LTandb. t. 7, nee Benth. Fl. 

 Austral, vii. p. 259, quoad ex Australia). 



C. xanthinus, Presl in Oken Isis, xxi. p. 27 1, fide Steud. 



C. poseformis, Pursh. Fl. Amer. Sept. i. p. 50 ; Kunth, Enum. ii. p. 113; 



cf. Torrey in Ann. Lyceum New York, iii. p. 250. 

 C. Gussoni, Gasp. ! in Guss. Syn. Fl. Sicul. ii. Add. p. 779. 

 C. setaceus, Wulfen. Fl. Norica, p. 49, non Retz. 

 Pycreus flavescens, Reichb. Fl. Germ. p. 72; Nees, Gen. PI. Germ. ii. 



t. 22, fig. 14-16. 

 — Moris Hist. iii. p. 239, sect. 8. t. 11. fig. 37. — Bauh. Theat. i. 



p. 89, cum ic. — Scheuz. Ayr. p. 386, t. 8. fig. 13. 



Glabra, casspitosa, radicibus fibrosis. Culmi 1-5 dm., sursum 

 trigoni, leves. Folia 2-4, cum § parte culmi subaequilonga, 

 angusta, levia. Bracteae long* 1-8 cm., foliis similes. TTmbellae 

 radii 2-5, longi 0-5 cm., plerumque breves; ochrese breviter 

 cylindrical, unidentatae. Umbellulae congestim corymbosae, ebrac- 

 teatae, radiolis brevissimis, 1-3-spiculosis, aut e spica simplice con- 

 stantes. Spiculae in unoquoque radio 3-10, fasciculatae aut bre- 

 viter spicatae, longa? 5-18 mm. latae 3 mm., 10-40-florae ; rbacbilla 

 exalata ; gluma ima lanceolata, bracteaeformis, caeteris subbrevior. 

 G-luma? spissae, subturgidae, in dorso viridi-3-nerviae, in lateribus 

 enervosae, nitidse aut fuscae. Stamina 3 ; antberae anguste ob- 

 longae, muticse. Stylus nuce brevior ; rami 2, e gluma breviter 

 exserti. Nux obovoidea, obtusa, apicata, modice compressa, nigro- 

 castanea ; cellules extimae longitudinaliter oblongae (3-4plo lon- 

 giores quam latae), emarcidae, byalinaB, detergibiles ; ideoque nux 

 plus minus transversim a lineis undulatis albidis interruptis 

 notata. — Exemplum authenticum C. flavescentis, in b. Linn, 

 proprio conservatum est C. rivularis : idcirco cl. Boott exempla 

 Americana C. rivularis, in h. Mus. Brit, conservata, manu sua 

 "C. flavescens, Linn.," nominavit. 



Regio Mediterranea, ab Holstein et Algiers usque ad Cabul ; 

 America borealis calidior; Varr. usque ad Natal et Brasil 

 extensis. 



Europa : Berlin (Beichenbach n. 151, hh. Kew, Mus. Brit.) ; 

 Frankfort (Lawrence, h. Calcutta); Palermo (Todaro, h. Cal- 

 cutta); Switzerland (W. Hooker, h. Calcutta); Portugal, 

 Cintra (Welwitsch n. 340, hh. Kew, Mus. Brit.). 



