414 



PATAGONIAN EXPEDITIONS I BOTANY. 



FIG. 70. 



5. HAMAD RYAS SEMPERVIVOIDES Sprague. (Plate XVI.) 



Differs from the other species by rosulate habit and glabrous sepals 

 and petals. 



Rootlets fibrous, thick, adventitious. Stem simple or bifid, 25-37 mm. 

 long, clothed below by the leaf-bases. Leaves sessile, rosulate, sheath- 

 ing the stem ; limb twice trisect, 4-5 mm. long, the mid-segment external, 

 the latinise oblong, cuspidate, glabrous; sheath 10-12 mm. long, 7-8 



mm. broad, scariose, spongiose upwards, 

 woolly externally. Scape concealed by 

 leaves, 16 mm. long, i -flowered. Male 

 flowers unknown. Female flowers; 

 sepals 5-6, deltoid-subulate, 3 mm. long, 

 1-1.5 mm - broad, scariose ; petals about 7, 

 linear-subulate, 8 mm", long, with a nec- 

 tariferous callus above the base. Ovaries 

 ovate, attenuate above to an uncinate 

 style. Achenes posteriorly produced at 

 the base. 



S. Patagon., on lava rocks in Cordil- 

 leras, J. B. Hatcher, Feb. 1897. 



"A most distinct species showing typ- 

 ical adaptation to high mountain condi- 



Hamaaryas tomentosa. Stammate flower 

 and one of its petals both magnified. tlons - T. A - SpragUC, in 



( After Flora antarctica.} Icones Plantarum, vol. viii, part ii, May, 



1902. (Plate 2748.) 1 



1 (This interesting specimen was sent by us to Kew Herbarium, where it was recognized as a 

 new species, and described and published in the Icones Plantarum^) 



Diagnosis (issued in advance in Hooker's Icones Plantarum, plate 2748, May, 1902.) 



HAMADRYAS SEMPERVIVOIDES Sprague (sp. nov.) ; a certeris speciebus differt habitu rosulato, 

 sepalis petalisque glabris. 



Radicelli fibrosi, crassi, adventitii. Caulis simplex vel bifidus, 1-1.5 PN- longus, subtus folio- 

 rum basibus vestitus. Folia sessilia, rosulata, caulem vaginantia ; lamina bis trisecta, 2-2.5 nn - 

 longa, segmento medio exteriore, laciniis oblongis, cuspidatis, glabris ; vagina 5-6 lin. longa, 

 3.5-4 lin. lata, scariosa, superne spongiosa, extus lanata. Scapus foliis occultus, 8 lin. longus, 

 i-florus. Flares masculos non vidi. Flares feminei: sepala 5-6 deltoideo-subulata, 1.5 lin. 

 longa, 5--7S lin. lata, scariosa ; petala circa 7, lineari-subulata, 4 lin. longa, supra basin collo 

 nectarifero instructa. Ovaria ovata, superne in stylum uncinatum attenuata. Achaenia basi 

 postice producta. 



