206 
JOSEPH F. ROCK 
(It grew in company with another form with leaves perfectly glabrous 
beneath, no. 8214.) 
This form differs from the typical mauiensis in the leaves, which are 
densely matted with wool beneath instead of being tomentose, and in the 
nerves, which are consequently indistinct beneath. The median nerve of 
the calyx is also covered with wool, and the stamens are broader than in the 
type. 
Plantago pachyphylla var. hawaiiensis A. Gray, Proc. Amer. Acad. 
6: 54. 1866. Inclusive of subvariety gracilis A. Gray I.e. 55. 
Caudex more or less woolly; leaves ovate-lanceolate, broadly lanceolate, 
linear-ligulate, or lanceolate-oblong, 3- to 9-nerved, narrowed at the base 
into a very short or slender petiole, 1.5 to 6 cm. long; spike up to 40 cm. 
long, glabrous or with deciduous pubescence, slender, loosely flowered; 
sepals nearly all ciliolate, slightly shorter than, or twice the length of, the 
capsule; capsule oblong to ellipsoidal, 4- to 6-seeded. 
Hawaii: Mauna Kea and Mauna Loa (6,000-8,000 feet) "in the en- 
virons of the great crater," Remy, 1851-5, no. 429 in Gray Herb.; on lava 
bed near Kalulu, Mt. Hualalei (6,000 feet), June 10, 1909, Rock, nos. 3722 
and 3672 in the College of Hawaii Herb. 
Subvariety gracilis is not distinct enough to be retained as a subvariety, 
but must be included in var. hawaiiensis. The writer's plants from 
Hualalei agree very well with Remy's specimen no. 429, but the leaves 
also agree with Gray's typical hawaiiensis. On the same sheet with 
Hawaiiensis is a pubescent specimen which Gray marked inter a and /3. 
It is evidently a pubescent form, the pubescence disappearing in older leaves. 
Hillebrand's specimen belongs to that form. Hillebrand's specimen from 
Mt. Eeke marked var. hawaiiensis does not belong here, but undoubtedly 
belongs to var. kauaiensis, as it agrees fairly well with the type of that 
variety. 
Plantago pachyphylla var. kauaiensis A. Gray, Proc. Amer. Acad. 6: 
55. 1866. 
Herbaceous, caudex very short, fibrillous, woolly between the leaves; 
leaves coriaceous, linear-lanceolate, 5 to 6 cm. long including the very 
short, broad, sessile petiole, obtuse at the apex, rugose above, 3- to 5- 
nerved, impressed above, glabrous, pubescent beneath or glabrate; spikes 
one to several, slender, black, glabrous or hirsute with brownish hairs in 
the young state, loosely flowered; peduncle slender, 9 to 14 cm. long; rachis 
of the same length or slightly longer; flowers partly woolly at the base; 
bracts shorter than the calyx, obtuse ; calyx segments obtuse or subacute ; 
corolla segments ovate, acute; anthers broadly ovate, apiculate; style long- 
exserted, pubescent; capsule exceeding the calyx, dehiscing at the middle, 
often i-seeded; seeds oval, pale brown, never viscous. 
Kauai: On tabular summit, U. S. Explor. Exped., type in Gray Herb.; 
Waialeale, Oct. 20, 1911, Rock, no. 8891 in College of Hawaii Herb. (No. 
