246 PATAGONIAN EXPEDITIONS I BOTANY. 



P. 738: Add: 



PLANTAGO PACHYNEURA Steud. 



Stemless herb, with short, thick, subligneous rootstock, the radical 

 leaves expanded, membranaceous, ovate-lanceolate, attenuate to a short 

 petiole, coarsely toothed. Scapes exceeding the leaves, glabrous, flexuous, 

 hairy upwards. Spike about 4 cm., lax below, dense above; bracts 

 shorter than calyx, ovate, with scarious margin. Petals connivent, acute. 

 Stigma scarcely exsert. Capsule 2-seeded, seeds margined, with a scar. 



W. Patagon., its northern section, by Rio Renihue. 



22. P. PULVINATA Speg. 



S. Patagon., near Rio Negro and along Rio Chico (of the Rio Sta. 

 Cruz.), and Mid-Patagonia, at Lago Blanco. 



23. P. SEMPERNIVOIDES Dusen. 



Description from Dusen's Neue und Seltene Gefasspfl. p. 37, Taf. 4, etc. 



Caudex subterraneus, verticalis, superne 5.0-6.0, mm. crassus et foliis 

 emarcidis defectis obtectus, primo simplex, demum apice dense ramosus, 

 ramis brevibus, 3.0-4.0 cm. longis, linearibus, cum foliis 1.5-1.8 cm. 

 crassis, inferne ramosis; folia densissime conferta, imbricata, incurvata, 

 linearia, subconcava, lamina c. 7.0 mm. longa et 2.0 mm. lata, epetiolata, 

 in vaginam parum ampliatam, subamplexicaulem, pilis longis albidis 

 obtectam transeunte, integerrima, glaberrima, apice sensim acuminata, in 

 cuspidem, c. 2.0 mm. longum, hyalinum, fragilem producta; scapi ex 

 axillis foliorum suprem. oriundi, foliis breviores ad 6.0 mm. usque alti, 

 graciles, glaberrimi, nudi, uniflori ; bracteae binae, oppositae, ad basin floris 

 dispositas, ovatae, acutissimae, c. 3.2 mm. longae et 1.2 mm. latae, mem- 

 branaceae, glaberrimae, late et hyaline marginatas, intus ad basin sublanatae ; 

 sepala late ovata, c. 3.0 mm. longa et 1.8 mm. lata, concava, acutissima, 

 scariosa, glaberrima, integerrima, subcarinata, marginibus late hyalinis ; 

 corolla glaberrima, tubo longitudine bracteis simili, lobis dependentibus, 

 late ovatis, longe acuminatis, acutissimis, scariosis, tubo medio sublongi- 

 oribus ; capsula oblongo-ovata, c. 4.0 mm. longa et 2.0 mm. lata, paullo 

 infra medium circumcissa, parte inferiore persistente. 



S. Patagonia, in the mountains near Rio Fosiles (850-1,100 m.). 



Caudex simple, at last densely branching, with short, thick branches ; 

 leaves densely imbricating, incurved, linear, subconcave, epetiolate, entire, 



