Notes on Carex — V 



Kenneth Kent Mackenzie 



Carex salinaeformis sp. nov. 



" Cm-ex salina Wahl. var. 7nmor Boott," W. Boott in Bot. Calit. 

 2 : 242. 1880. 



Culms low and rather slender, 515 cm. high, from long-creep- 

 ing, slender rootstocks, phyllopodic, smooth or nearly so on the 

 bluntish angles, generally exceeded by the leaves, not reddened or 

 fibriliose at base. Leaves with well-developed blades usually five 

 to eight to a fertile culm, the blades flat, 2-3 mm. wide, 3-12 cm. 

 long, roughened towards the apex ; terminal spike staminate, short- 

 to long-peduncled, 8-12 mm. long, 2-5 mm. wide, the scales 

 obovate, obtuse, reddish brown with lighter center and often 

 strongly developed hyaline margins; pistillate spikes three or four, 

 widely separate, or upper approximate, erect, the upper shortly 

 exsert-peduncled, the lower strongly exsert-ped uncled, narrowly 

 oblong, 6-12 mm. long, 3-4 mm. wide, containing 8-15 appressed 

 ascending perigynia closely packed in i^w ranks ; bracts leaflet- 

 like, often exceeding inflorescence, their sheaths conspicuous, 3—15 

 mm. long ; scales ovate, from cuspidate (the lower) to obtuse (the 

 upper), reddish brown with broad lighter center and slightly hy- 

 aline margins, as wide as the perigynia but generally shorter ; 

 perigynia oblong-ovate, flattened-suborbicular in cross-section, 

 rather lightly several-nerved, 3 mm. long, 1.75 mm. wide, rounded 

 at base and apex, beakless but slightly constricted at apex ; achenes 

 lenticular, their faces suborbicular, 1,5 mm. long; stigmas two. 



The above species is founded on Bolander's 4702, collected in 



1866 and represented by two sheets in the Torrey herbarium. In 



the Botany of California the plant in question \s referred to Carex 



salina Wahl. var. minor Boott, but the strongly developed sheaths 



of the bracts forbid any such disposition as do also the noticeably 



nerved perigynia. It is, indeed, a well-marked species, and is one 



of several such furnished bv Mendocino Countv. 



Carex m.acrosperma sp. nov. 



Culms tall, stiff and erect, but rather slender, 6-10 dm. high, 

 from thick rootstocks, phyllopodic, smooth or nearly so on the 



477 



