88 I. W. Clohey — Carex Notes. 



Aet. III. — Caeex Notes; by Ira W. Clokey. Carex 

 apoda sp. nov. With Plate II. 



Culms 7-8 dm. tall, erect, sharply angled, smooth, 

 phyllopodic, dark brown at base. Leaves shorter than 

 the culm, 3.5-5 mm. wide, flat, rough on the margins, 

 situated on the lowest third of the culm. Sheaths over- 

 lapping, loose; ventral band hyaline, white or tawny, 

 easily ruptured. Spikes 4-6, contiguous but distinct or 

 the lowest somewhat separated, erect, upper sessile or 

 subsessile, lower one or two short peduncled. Terminal 

 spike gynaecandrous, lateral spikes pistillate, all many 

 flowered; 10-20 mm. long, 5-7 mm. wide. Lowest 

 bract or bracts leaf -like, shorter to about the length of 

 the inflorescence, upper bracts scale-like. Scales lanceo- 

 late, acute to short cuspidate, about as wide as but shorter 

 than the perigynia, brown, somewhat shining; midrib 

 obsolete or narrow and a little lighter than the balance of 

 the scale. Perigynia nerveless, compressed, narrowly 

 oblong or narroivly elliptic, sessile, white or tinged with 

 light brown, darkest over the achene, 4-4.2 mm. long, 

 1.2 mm. wide, membranous, smooth, with short, cylindric, 

 dark brown, emarginate beak. Achene triangular, ellip- 

 tic, light brown, dull, 1.3-1.4 mm. long, .7-.75 mm. wide, on 

 a slender stipe 1 mm. long raising the achene to the center 

 of the perigynia. Stigmas three. 



Bhizoma verisimiliter csespitosum. Culmus 70-80 cm. alius, 

 strictus, ad basin vaginis aphyllis purpureis obtectus. Folia 

 cnlmo breviora plana angusta fere glabra. Spicnlae 4-6 

 oblongae 1-2 cm. longae densiflorae obtusae contiguse sessiles, ima 

 remotiuscula brevissime pedunculata, terminalis gynaecandra 

 clavata, laterales $ longiones. Bracteae superiores setaceas ima 

 foliacea evaginans spicam terminalem attingens. Squamae 2 

 oblongo-ovatae acutae vel brevissime cuspidatae atro-purpureae 

 nervo medio obscuro. Utriculi sqnamas snbaequantes sed lationes 

 erecti elliptical 4-4.2 mm. longi glagri albidi leviter pupreo macu- 

 lati plurinervosi haud stipitati, rostro brevi bidentulo apiculati. 

 Nux elliptica stipitata trigona. Stigmata 3. 



The above description is based on specimens collected 

 by Prof. Aven Nelson and J. F. Macbride in ponds at an 

 elevation of 1794 meters, at Mackay, Custer Co., Idaho, 

 Aug. 1, 1911. Their number 1533, deposited in my her- 

 barium, is designated as the type. Their number 1535, 



