252 HYDROPHYLLACE.E. 



in bud; the throat appendaged within with 10 scales or plaits. Stamens 

 and style mostly shorter than the corolla; filaments naked; anthers 

 sagittate. Ovary tardily dehiscent by 2 valves, 1 — 16-seeded. Seeds 

 globular or nearly so. 



* Leaves alternate; stems beset with short retrorse prickles. 



1. N. anrita, Lindl. Stems both fleshy and very brittle, 1—3 ft. 

 long, reclining or trailing by the prickly angles: leaves deeply pinnatifid 

 above into mostly retrorse lobes, the petiole broadly winged and the 

 wing auriculate-dilated at the base: lower peduncles 1 flowered, upper 

 often 3-flowered: appendages of the calyx very small: corolla 1 in. broad, 

 dark violet, its appendages broad, partly free: seeds globose, reticulate. — 

 Shady slopes of hills, in San Mateo Co., and on Angel Island. 



2. 5. membranaeea (Benth.). More slender, paler, glaucescent, 

 prickly-angled and procumbent, 1 — lj^ft. long: leaves pinnately divided 

 into 3 — 9 linear obtuse nearly entire divisions; the petiole winged: fl. 

 few or many on the peduncles, very small; calyx and corolla without 

 appendages, the latter while: seeds globose, reticulated. — Shady hillsides 

 from the -Livermore Valley southward. Thoroughly congeneric with 

 N. racemosa; only empirically placed under "Ellisia," notwithstanding 

 the absence of calyx-bractlets. March, April. 



#" * Leaves often opposite; stems not prickly-angled. 



3. H. iiisigiiis, Dougl. At length very branching, the branches 

 ascending, 6 — 10 in. high: leaves pinnately parted into 7—9 oblong, 

 sometimes 3 — 5-lobed, small divisions: corolla rotate-campanulate, 1 in. 

 broad, clear blue; its internal scales short and rounded, partly free, short- 

 hirsute: seeds oval, somewhat corrugated or tuberculate. — Very common 

 in rich fields and on low hills. April, May. 



4. If. Menziesii, Hook. & Arn. Smaller than the preceding, the 

 leaves less divided: corolla as large, rather more nearly rotate, white or 

 eery pale blue, sprinkled with dark dots toward the centre, the spots 

 confluent into a purplish eye; its scales narrow, one edge wholly adherent, 

 the other Jree and densely ciliate: seeds oval or oblong, either smooth or 

 somewhat tuberculate. — Not as common as the last, though plentiful in 

 some parts of Marin and Napa counties. April, May. 



5. If. pedunculata, Benth. Every way much smaller than the last; 

 whole plant 2—4 in. high: corolla seldom 2 lines wide, white, with purple 

 re'udets. — Bocky shades, and very wet plains; not uncommon. May. 



6. Jf. parviflora, Dougl. Slender, weak and procumbent, neither 

 the leaves nor the stems notably succulent: leaves pinnately 5 — 9-parted, 

 the divisions obovate or oblong, obtuse: corolla campanulate, 3 — 5 lines 

 broad, white; its appendages oblong, wholly adherent by one edge, 

 nearly or quite glabrous. — Shady mountain sides. April— June. 



